Range of Machining Limits

Inch Thickness Gauge Standard

• Minimum Distance Between a Hole and an Edge or Between Two Holes
• Minimum Diameter for Through Holes, Minimum Width of Rectangular/Slotted Holes/Other Holes
• Minimum Distance Between a Hole and Bend: Normal Bending
• Minimum Distance Between a Hole and Bend: R-bend shape
• Slit on the bending line (except for acute angle bending shapes with an internal angle of less than 90°)
• Minimum Bending Height: Normal Bending
• Minimum Bending Height : R-bend shape
• Width Specification Range for Bending
• Minimum Angle for Acute Angle Bending
• Minimum Radius of Rectangular Holes

Metric Thickness Gauge Standard

• Minimum Distance Between a Hole and an Edge or Between Two Holes
• Minimum Diameter for Through Holes, Minimum Width of Rectangular/Slotted Holes/Other Holes
• Minimum Size of Cutout Shape
• Minimum Slit Width (when the part is unfolded).
• Minimum Bending Height
• The minimum bending height
• Width Specification Range for Bending
• Minimum Distance Between a Hole and Bend
• Minimum distance between engravings, between edge or hole |
• Minimum distance between engraving and nut
• Minimum distance between engraving and bending
• Slit on the bending line (except for acute angle bending shapes with an internal angle of less than 90°).
• *Reference) Comparative example of machining limits of hole positions with or without openings
• Minimum distance between nuts
• Minimum distance between nut and hole
• Minimum distance between nut and edge of the material
• Maximum distance between nut and edge of the material
• Minimum distance between engravings, between edge or hole |
• Minimum distance between engraving and nut
• Minimum distance between engraving and bending
• Minimum Angle for Acute Angle Bending
• Minimum Radius of Rectangular Holes

• The limits for machining and the size ranges are defined for each standard part. Make sure that any models you create fall within the standard range.
• *Values may differ from those listed depending on surface treatment, shape, and processing conditions.

Inch Thickness Gauge Standard

Minimum Distance Between a Hole and an Edge or Between Two Holes

Machining Limits, Size Range

Material	Sheet thickness(Gauge)	Thickness (Inch)	Limit a	Limit b	Limit c

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0179″	1.0	Friction drilled tapped hole is not available in Inch gauge sheetmetal
	24	0.0239″	1.0
	22	0.0299″	0.5
	20	0.0359″	0.5
	19	0.0418″	0.5
	18	0.0478″	1.0
	17	0.0538″	1.0
	16	0.0598″	1.0
	14	0.0747″	1.0
	13	0.0897″	1.0
	12	0.1046″	1.5
	11	0.1196″	1.5
	10	0.1345″	2.0
	9	0.1495″	2.0
	8	0.1644″	2.0
	7	0.1793″	2.0
	6	0.1943″	2.0
	(3/16)	0.1875″	2.5
	(1/4)	0.2500″	2.5
	(3/8)	0.3750″	4.0
	(1/2)	0.5000″	6.0
Low Carbon Steel (Electrolytic Galvanized) Low Carbon Steel (Hot Galvanized)	26	0.0217″	1.0
	24	0.0276″	0.5
	22	0.0336″	0.5
	20	0.0396″	0.5
	18	0.0516″	1.0
	16	0.0635″	1.0
	14	0.0785″	1.0
	13	0.0934″	1.0
	12	0.1084″	1.5
	11	0.1233″	1.5
	10	0.1382″	2.0
	8	0.168″	2.0
	7	0.1793″	2.0
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	26	0.0187″	1.0
	24	0.0250″	1.0
	22	0.0312″	0.5
	20	0.0375″	0.5
	19	0.0437″	0.5
	18	0.0500″	1.0
	17	0.0562″	1.0
	16	0.0625″	1.0
	14	0.0781″	1.0
	13	0.0937″	1.0
	12	0.1094″	1.5
	11	0.1250″	1.5
	10	0.1406″	2.0
	8	0.1719″	2.0
	7	0.1875″	2.0
	3	0.2500″	2.5
316 Stainless Steel (2B)	26	0.0187″	1.0
	24	0.0250″	1.0
	22	0.0312″	1.0
	20	0.0375″	1.0
	18	0.0500″	1.0
	16	0.0625″	1.0
	14	0.0781″	1.0
	12	0.1094″	1.5
	11	0.1250″	1.5
	10	0.1406″	2.0
	7	0.1875″	2.0
	1/4	0.2500″	3.0
	1/2	0.5000″	6.0
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	0.5
	–	0.0250″	0.5
	–	0.0320″	0.5
	–	0.0400″	0.5
	–	0.0500″	1.0
	–	0.0630″	1.0
	–	0.0800″	1.0
	–	0.0900″	1.0
	–	0.1000″	1.0
	–	0.1250″	1.5
	–	0.1600″	2.0
	–	0.1900″	2.0
	–	0.2500″	3.0
	–	0.3125″	4.0
	–	0.375″	4.0
	–	0.5′	6.0

Example

Minimum Diameter for Through Holes
Minimum Width of Rectangular/Slotted Holes/Other Holes

Machining Limits, Size Range

Material	Sheet thickness(Gauge)	Thickness (Inch)	Limit d	Limit w1	Limit w2

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0179″	1.0	1.0	1.0
	24	0.0239″	1.0	1.0	1.0
	22	0.0299″	0.4	0.8	0.8
	20	0.0359″	0.5	1.0	1.0
	19	0.0418″	0.5	1.0	1.0
	18	0.0478″	0.6	1.2	1.2
	17	0.0538″	0.6	1.2	1.2
	16	0.0598″	0.8	1.6	1.6
	14	0.0747″	1.0	2.0	2.0
	13	0.0897″	1.2	2.3	2.3
	12	0.1046″	1.4	2.7	2.7
	11	0.1196″	1.6	3.2	3.2
	10	0.1345″	1.8	3.5	3.5
	9	0.1495″	3.5	3.5	3.5
	8	0.1644″	2.0	2.0	2.0
	7	0.1793″	2.0	2.0	2.0
	6	0.1943″	2.6	4.9	4.9
	(3/16)	0.1875″	4.5	4.5	4.5
	(1/4)	0.2500″	6.1	6.1	6.1
	(3/8)	0.3750″	9.1	9.1	9.1
	(1/2)	0.5000″	12.5	12.5	12.5
Low Carbon Steel (Electrolytic Galvanized) Low Carbon Steel (Hot Galvanized)	26	0.0217″	1.0	1.0	1.0
	24	0.0276″	0.3	0.6	0.6
	22	0.0336″	0.4	0.8	0.8
	20	0.0396″	0.5	1.0	1.0
	18	0.0516″	0.6	1.2	1.2
	16	0.0635″	0.8	1.6	1.6
	14	0.0785″	1.0	2.0	2.0
	13	0.0934″	2.0	2.0	2.0
	12	0.1084″	2.5	2.5	2.5
	11	0.1233″	3.0	3.0	3.0
	10	0.1382″	3.5	3.5	3.5
	8	0.168″	4.0	4.0	4.0
	7	0.1793″	4.5	4.5	4.5
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	26	0.0187″	1.0	1.0	1.0
	24	0.0250″	1.0	1.0	1.0
	22	0.0312″	0.4	0.8	0.8
	20	0.0375″	0.5	1.0	1.0
	19	0.0437″	0.5	1.0	1.0
	18	0.0500″	0.6	1.2	1.2
	17	0.0562″	0.6	1.2	1.2
	16	0.0625″	0.8	1.6	1.6
	14	0.0781″	1.0	2.0	2.0
	13	0.0937″	1.2	2.3	2.3
	12	0.1094″	1.4	2.7	2.7
	11	0.1250″	1.6	3.2	3.2
	10	0.1406″	1.8	3.5	3.5
	8	0.1719″	2.2	4.3	4.3
	7	0.1875″	2.3	4.0	4.0
	3	0.2500″	3.0	4.0	4.0
316 Stainless Steel (2B)	26	0.0187″	1.0	1.0	1.0
	24	0.0250″	1.0	1.0	1.0
	22	0.0312″	1.0	1.0	1.0
	20	0.0375″	1.0	1.0	1.0
	18	0.0500″	1.0	1.0	1.0
	16	0.0625″	1.0	1.0	1.0
	14	0.0781″	1.0	1.0	1.0
	12	0.1094″	1.5	1.5	1.5
	11	0.1250″	1.5	1.5	1.5
	10	0.1406″	2.0	2.0	2.0
	7	0.1875″	2.0	2.0	2.0
	1/4	0.2500″	5.0	5.0	5.0
	1/2	0.5000″	12.5	12.5	12.5
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	0.2	0.5	0.5
	–	0.0250″	0.3	0.6	0.6
	–	0.0320″	0.4	0.8	0.8
	–	0.0400″	0.5	1.0	1.0
	–	0.0500″	0.6	1.2	1.2
	–	0.0630″	0.8	1.6	1.6
	–	0.0800″	1.0	2.0	2.0
	–	0.0900″	1.2	2.3	2.3
	–	0.1000″	1.2	2.3	2.3
	–	0.1250″	1.6	3.2	3.2
	–	0.1600″	1.5	1.5	1.5
	–	0.1900″	2.0	2.0	2.0
	–	0.2500″	2.0	2.0	2.0
	–	0.3125″	7.5	7.5	7.5
	–	0.375″	9.5	9.5	9.5
	–	0.5′	12.5	12.5	12.5

Example

Minimum Distance Between a Hole and Bend: Normal Bending

Machining Limits, Size Range

Material	Sheet thickness (Gauge)	Thickness (Inch)	Through Hole Slotted Hole Rectangular Hole		Tapped Hole		Burring Tap	Countersunk Hole
			Minimum Value a	Limit a	Minimum Value a	Limit a	Limit a	Minimum Value a	Limit a

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0187″	–	9.0	–	9.0		–	9.0
	24	0.0179″	–	9.0	–	9.0		–	9.0
	22	0.0239″	–	2.0	–	1.9		–	1.0
	20	0.0359″	–	2.0	–	2.7		–	1.4
	19	0.0418″	–	2.0	–	2.7		–	1.8
	18	0.0478″	–	3.0	–	3.9		–	2.2
	17	0.0538″	–	3.0	–	3.9		–	2.6
	16	0.0598″	–	3.5	–	5.2		–	3.0
	14	0.0747″	–	4.0	–	6.6		–	4.0
	13	0.0897″	–	5.0	–	7.8		–	5.0
	12	0.1046″	–	5.6	–	9.2		–	6.0
	11	0.1196″	–	6.5	–	11.7		–	6.5
	10	0.1345″	–	7.2	–	12.5		–	8.0
	9	0.1495″	–	22.5	–	22.5		–	22.5
	8	0.1644″	–	22.5	–	22.5		–	22.5
	7	0.1793″	–	22.5	–	22.5		–	22.5
	3/16	0.1875″	–	22.5	–	22.5		–	22.5
	6	0.1943″	–	10.3	–	18.3		–	11.3
	3	0.2500″	–	14.0	–	22.4		–	16.0
Low Carbon Steel (Electrolytic Galvanized) Low Carbon Steel (Hot Galvanized)	26	0.0217″	–	9.0	–	9.0		–	9.0
	24	0.0276″	–	1.5	–	1.3		–	0.6
	22	0.0336″	–	2.0	–	1.9		–	1.0
	20	0.0396″	–	2.0	–	2.7		–	1.4
	18	0.0516″	–	3.0	–	3.9		–	2.2
	16	0.0635″	–	3.5	–	5.2		–	3.0
	14	0.0785″	–	4.0	–	6.6		–	4.0
	13	0.0934″	–	9.0	–	9.0		–	9.0
	12	0.1084″	–	9.0	–	9.0		–	9.0
	11	0.1233″	–	16.0	–	16.0		–	16.0
	10	0.1382″	–	16.0	–	16.0		–	16.0
	8	0.168″	–	22.5	–	22.5		–	22.5
	7	0.1793″	–	22.5	–	22.5		–	22.5
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	26	0.0187″	–	9.0	–	9.0		–	9.0
	24	0.0250″	–	9.0	–	9.0		–	9.0
	22	0.0312″	–	2.0	–	1.9		–	1.0
	20	0.0375″	–	2.0	–	2.7		–	1.4
	19	0.0437″	–	2.0	–	2.7		–	1.8
	18	0.0500″	–	3.0	–	3.9		–	2.2
	17	0.0562″	–	3.5	–	5.2		–	3.0
	16	0.0625″	–	3.5	–	5.2		–	3.0
	14	0.0781″	–	4.0	–	6.6		–	4.0
	13	0.0937″	–	5.0	–	7.8		–	5.0
	12	0.1094″	–	5.6	–	9.2		–	6.0
	11	0.1250″	–	6.5	–	11.7		–	6.5
	10	0.1406″	–	7.2	–	12.5		–	8.0
	8	0.1719″	–	8.8	–	15.5		–	10.0
	7	0.1875″	–	9.5	–	16.3		–	9.5
	3	0.2500″	–	13.1	–	23.0		–	14.7
316 Stainless Steel (2B)	26	0.0187″	–	9.0	–	9.0		–	9.0
	24	0.0250″	–	9.0	–	9.0		–	9.0
	22	0.0312″	–	9.0	–	9.0		–	9.0
	20	0.0375″	–	9.0	–	9.0		–	9.0
	18	0.0500″	–	9.0	–	9.0		–	9.0
	16	0.0625″	–	9.0	–	9.0		–	9.0
	14	0.0781″	–	9.0	–	9.0		–	9.0
	12	0.1094″	–	9.0	–	9.0		–	9.0
	11	0.1250″	–	16.0	–	16.0		–	16.0
	10	0.1406″	–	22.5	–	22.5		–	22.5
	7	0.1875″	–	22.5	–	22.5		–	22.5
	1/4	0.2500″	–	13.1	–	23.0		–	14.7
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	–	1.3	–	1.0		–	0.6
	–	0.0250″	–	1.5	–	1.3		–	0.6
	–	0.0320″	–	2.0	–	1.9		–	1.0
	–	0.0400″	–	2.0	–	2.7		–	1.4
	–	0.0500″	–	3.0	–	3.9		–	2.2
	–	0.0630″	–	3.5	–	5.2		–	3.0
	–	0.0800″	–	4.0	–	6.6		–	4.0
	–	0.0900″	–	5.0	–	7.8		–	5.0
	–	0.1000″	–	5.0	–	7.8		–	5.0
	–	0.1250″	–	6.5	–	11.7		–	6.5
	–	0.1600″	–	16.0	–	16.0		–	16.0
	–	0.1900″	–	16.0	–	16.0		–	16.0
	–	0.2500″	–	22.5	–	22.5		–	22.5

• *1 The hole may be deformed if it is below the minimum value.

  The dimensions are therefore inaccurate, but will be processed as they are.

• *2 If the distance is under the minimum value, re-tapping will be necessary and the fit may be affected.

Example

If there are internal angles of less than 90°, machining may not be possible even within the safe value range. If this is the case, meviy Support will contact you.

Minimum Distance Between a Hole and Bend: R-bend shape

Machining Limits, Size Range

Material	Sheet thickness (Gauge)	Thickness (Inch)	Through Hole Slotted Hole Rectangular Hole	Tapped Hole	Burring Tap	Countersunk Hole
			Limit a	Limit a	Limit a	Limit a

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	22	0.0299″	0.5	0.4		0.1
	20	0.0359″	0.2	0.9		0.1
	19	0.0418″	0.1	0.6		0.1
	18	0.0478″	0.6	1.5		0.1
	17	0.0538″	0.3	1.2		0.1
	16	0.0598″	0.5	2.2		0.1
	14	0.0747″	0.2	2.8		0.2
	13	0.0897″	0.4	3.2		0.4
	12	0.1046″	0.3	3.9		0.7
	11	0.1196″	0.4	5.6		0.4
Cold Rolled Low Carbon Steel (Electrolytic Galvanized) Cold Rolled Low Carbon Steel (Hot Galvanized)	24	0.0276″	0.1	0.1		0.1
	22	0.0336″	0.3	0.2		0.1
	20	0.0396″	0.1	0.7		0.1
	18	0.0516″	0.4	1.3		0.1
	16	0.0635″	0.3	2.0		0.1
	14	0.0785″	0.1	2.6		0.1
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	22	0.0312″	0.4	0.3		0.1
	20	0.0375″	0.1	0.8		0.1
	19	0.0437″	0.1	0.5		0.1
	18	0.0500″	0.5	1.4		0.1
	17	0.0562″	0.6	2.3		0.1
	16	0.0625″	0.3	2.0		0.1
	14	0.0781″	0.1	2.6		0.1
	13	0.0937″	0.2	3.0		0.2
	12	0.1094″	0.1	3.6		0.4
	11	0.1250″	0.1	5.3		0.1
5052 Aluminum Alloy	–	0.0250″	0.2	0.1		0.1
	–	0.0320″	0.4	0.3		0.1
	–	0.0400″	0.1	0.7		0.1
	–	0.0500″	0.5	1.4		0.1
	–	0.0630″	0.3	2.0		0.1
	–	0.0800″	0.1	2.5		0.1
	–	0.0900″	0.4	3.2		0.4
	–	0.1000″	0.1	2.7		0.1
	–	0.1250″	0.1	5.3		0.1

Example

Slit on the bending line (except for acute angle bending shapes with an internal angle of less than 90°)

Machining Limits, Size Range

Material	Sheet thickness	Thickness (Inch)	Minimum Value a *1	Minimum Value b *2	Limit c

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0179″	0.45	0.68	1.00
	24	0.0239″	0.61	0.92	1.00
	22	0.0299″	0.76	1.14	0.50
	20	0.0359″	0.91	1.37	0.50
	19	0.0418″	1.06	1.59	0.50
	18	0.0478″	1.21	1.82	1.00
	17	0.0538″	1.37	2.06	1.00
	16	0.0598″	1.52	2.28	1.00
	14	0.0747″	1.90	2.85	1.00
	13	0.0897″	2.28	3.42	1.00
	12	0.1046″	2.66	3.99	1.50
	11	0.1196″	3.04	4.56	1.50
	10	0.1345″	3.42	5.13	2.00
	9	0.1495″	3.80	5.70	2.00
	8	0.1644″	4.81	6.27	2.00
	7	0.1793″	4.55	6.83	2.00
	3/16	0.1875″	4.76	7.14	2.50
	6	0.1943″	4.90	7.41	2.00
	3	0.2500″	6.35	9.53	2.50
Cold Rolled Low Carbon Steel (Electrolytic Galvanized) Cold Rolled Low Carbon Steel (Hot Galvanized)	26	0.0217″	0.55	0.83	1.00
	24	0.0276″	0.70	1.05	1.00
	22	0.0336″	0.85	1.28	0.50
	20	0.0396″	1.01	1.52	0.50
	18	0.0516″	1.31	1.97	1.00
	16	0.0635″	1.61	2.42	1.00
	14	0.0785″	1.99	2.99	1.00
	13	0.0934″	2.37	3.56	1.00
	12	0.1084″	2.75	4.13	1.50
	11	0.1233″	3.13	4.70	1.50
	10	0.1382″	3.51	5.27	2.00
	8	0.1680″	4.27	6.41	2.00
	7	0.1793″	4.55	6.83	2.00
304 Stainless Steel (2B) 304 Stainless Steel (No.4) 316 Stainless Steel (2B)	26	0.0187″	0.47	0.71	1.00
	24	0.0250″	0.64	0.96	1.00
	22	0.0312″	0.79	1.19	0.50
	20	0.0375″	0.95	1.43	0.50
	19	0.0437″	1.11	1.67	0.50
	18	0.0500″	1.27	1.91	1.00
	17	0.0562″	1.43	2.15	1.00
	16	0.0625″	1.59	2.39	1.00
	14	0.0781″	1.98	2.97	1.00
	13	0.0937″	2.38	3.57	1.00
	12	0.1094″	2.78	4.17	1.50
	11	0.1250″	3.18	4.77	1.50
	10	0.1406″	3.57	5.36	2.00
	8	0.1719″	4.37	6.56	2.00
	7	0.1875″	4.76	7.14	2.00
	3	0.2500″	6.35	9.53	2.50
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	0.51	0.77	0.50
	–	0.0250″	0.64	0.96	0.50
	–	0.0320″	0.81	1.22	0.50
	–	0.0400″	1.02	1.53	0.50
	–	0.0500″	1.27	1.91	1.00
	–	0.0630″	1.60	2.40	1.00
	–	0.0800″	2.03	3.05	1.00
	–	0.0900″	2.29	3.44	1.00
	–	0.1000″	2.54	3.81	1.00
	–	0.1250″	3.18	4.77	1.50
	–	0.1600″	4.06	6.09	2.00
	–	0.1900″	4.83	7.25	2.00
	–	0.2500″	6.35	9.53	3.00

• *1 When a is not secured by the slit’s horizontal width, or when there is an acute angle bend, we can still provide an estimate, but instead of the limit value c, the aforementioned “Minimum distance between the hole and the bend” will be the limit value for the hole position.
• *2 If the slit’s height is smaller than b or the outside R (fillet size) of the bend, automatic quotation is not possible.
• *3 The limit value c is uniformly 3.0 mm only when the nearby hole in the right figure is a burring tap.

Example

Minimum Bending Height: Normal Bending

Machining Limits, Size Range

Material	Sheet thickness (Gauge)	Thickness (Inch)	Limit h (mm)

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0179″	9.0
	24	0.0239″	9.0
	22	0.0299″	4.2
	20	0.0359″	4.3
	19	0.0418″	4.3
	18	0.0478″	5.5
	17	0.0538″	5.5
	16	0.0598″	6.8
	14	0.0747″	8.2
	13	0.0897″	9.4
	12	0.1046″	10.7
	11	0.1196″	13.3
	10	0.1345″	13.9
	9	0.1495″	22.5
	8	0.1644″	22.5
	7	0.1793″	22.5
	3/16	0.1875″	22.5
	6	0.1943″	19.5
	3	0.2500″	24.7
Low Carbon Steel (Electrolytic Galvanized) Low Carbon Steel (Hot Galvanized)	26	0.0217″	9.0
	24	0.0276″	3.2
	22	0.0336″	4.2
	20	0.0396″	4.3
	18	0.0516″	5.5
	16	0.0635″	6.8
	14	0.0785″	8.2
	13	0.0934″	9.0
	12	0.1084″	9.0
	11	0.1233″	16.5
	10	0.1382″	16.5
	8	0.168″	22.5
	7	0.1793″	22.5
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	26	0.0187″	9.0
	24	0.0250″	9.0
	22	0.0312″	4.2
	20	0.0375″	4.3
	19	0.0437″	4.3
	18	0.0500″	5.5
	17	0.0562″	6.8
	16	0.0625″	6.8
	14	0.0781″	8.2
	13	0.0937″	9.4
	12	0.1094″	9.0
	11	0.1250″	13.3
	10	0.1406″	13.9
	8	0.1719″	16.8
	7	0.1875″	17.4
	3	0.2500″	23.5
316 Stainless Steel (2B)	26	0.0187″	9.0
	24	0.0250″	9.0
	22	0.0312″	9.0
	20	0.0375″	9.0
	18	0.0500″	9.0
	16	0.0625″	9.0
	14	0.0781″	9.0
	12	0.1094″	9.0
	11	0.1250″	16.0
	10	0.1406″	16.0
	7	0.1875″	22.5
	1/4	0.2500″	35
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	2.7
	–	0.0250″	3.2
	–	0.0320″	4.2
	–	0.0400″	4.3
	–	0.0500″	5.5
	–	0.0630″	6.8
	–	0.0800″	8.2
	–	0.0900″	9.4
	–	0.1000″	9.4
	–	0.1250″	13.3
	–	0.1600″	22.5
	–	0.1900″	22.5
	–	0.2500″	22.5

Example

Minimum Bending Height : R-bend shape

Machining Limits, Size Range

Material	Sheet thickness (Gauge)	Thickness (Inch)	Limit h (mm)

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	22	0.0299″	2.7
	20	0.0359″	2.5
	19	0.0418″	2.2
	18	0.0478″	3.1
	17	0.0538″	2.8
	16	0.0598″	3.8
	14	0.0747″	4.4
	13	0.0897″	4.8
	12	0.1046″	5.4
	11	0.1196″	7.2
Cold Rolled Low Carbon Steel (Electrolytic Galvanized) Cold Rolled Low Carbon Steel (Hot Galvanized)	24	0.0276″	1.8
	22	0.0336″	2.5
	20	0.0396″	2.3
	18	0.0516″	2.9
	16	0.0635″	3.6
	14	0.0785″	4.2
304 Stainless Steel (2B) 304 Stainless Steel (No.4)	22	0.0312″	2.6
	20	0.0375″	2.4
	19	0.0437″	2.1
	18	0.0500″	3.0
	17	0.0562″	3.9
	16	0.0625″	3.6
	14	0.0781″	4.2
	13	0.0937″	4.6
	12	0.1094″	5.1
	11	0.1250″	6.9
5052 Aluminum Alloy	–	0.0250″	1.9
	–	0.0320″	2.6
	–	0.0400″	2.3
	–	0.0500″	3.0
	–	0.0630″	3.6
	–	0.0800″	4.1
	–	0.0900″	4.8
	–	0.1000″	4.3
	–	0.1250″	6.9

Example

Width Specification Range for Bending

Machining Limits, Size Range

Material	Sheet thickness	Thickness (Inch)	Dimensional range w

Cold Rolled Low Carbon Steel Hot Rolled Low Carbon Steel	26	0.0179″	25~1500
	24	0.0239″
	22	0.0299″	5~1500
	20	0.0359″
	19	0.0418″
	18	0.0478″
	17	0.0538″
	16	0.0598″
	14	0.0747″
	13	0.0897″	10~1500
	12	0.1046″
	11	0.1196″
	10	0.1345″
	9	0.1495″	25~1500
	8	0.1644″
	7	0.1793″	25~1500
	3/16	0.1875″
	6	0.1943″	10~800
	3	0.2500″	10~600
Low Carbon Steel (Electrolytic Galvanized) Low Carbon Steel (Hot Galvanized)	26	0.0217″	25~1500
	24	0.0276″	5~1500
	22	0.0336″
	20	0.0396″
	18	0.0516″
	16	0.0635″
	14	0.0785″
	13	0.0934″	25~1500
	12	0.1084″
	11	0.1233″
	10	0.1382″
	8	0.168″
	7	0.1793″
304 Stainless Steel 304 Stainless Steel (No.4)	26	0.0179″	25~1500
	24	0.0239″
	22	0.0312″	5~1500
	20	0.0375″
	19	0.0437″
	18	0.0500″
	17	0.0562″
	16	0.0625″
	14	0.0781″	10~1500
	13	0.0937″
	12	0.1094″
	11	0.1250″
	10	0.1406″
	8	0.1719″	10~1000
	7	0.1875″	25~1500
	3	0.2500″
316 Stainless Steel (2B)	26	0.0187″	25~1500
	24	0.0250″
	22	0.0312″
	20	0.0375″
	18	0.0500″
	16	0.0625″
	14	0.0781″
	12	0.1094″
	11	0.1250″
	10	0.1406″
	7	0.1875″
	1/4	0.2500″
5052 Aluminum Alloy 6061 Aluminum Alloy	–	0.0200″	10~1500
	–	0.0250″
	–	0.0320″
	–	0.0400″
	–	0.0500″
	–	0.0630″
	–	0.0800″
	–	0.0900″
	–	0.1000″
	–	0.1250″
	–	0.160″	25~1500
	–	0.190″
	–	0.250″

Example

Minimum Angle for Acute Angle Bending

Machining Limits, Size Range

The angle (θ) for acute angle bending must be 30° or more.

Example

Minimum Radius of Rectangular Holes

Machining Limits, Size Range

• The radius (R) of the corners of a rectangular hole must be 0.5 mm or more.
• (For clear resin, this must be 3 mm or more.)

Example

Metric Thickness Gauge Standard

Minimum Distance Between a Hole and an Edge or Between Two Holes

Machining Limits, Size Range

Sheet Thickness			Limit a	Limit b	Limit c
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize ​ 5052 AL Alloy Pre-Finish, Black Anodize ​
0.8	0.8	0.8	0.5	11.5	3.0
1.0	1.0	1.0
1.2	1.2	1.2	0.6
–	1.5	1.5	0.7
1.6	–	1.6	0.8
2.0	2.0	2.0	1.0	–
2.3	–	–
–	2.5	2.5	1.2
–	3.0	3.0	1.5
3.2	–	–
–	4.0	4.0	2.0
4.5	–	–	2.2
–	5.0	5.0	2.5
6.0	6.0	6.0	3.0
9.0	9.0	–	4.0
10.0	10.0		5.0
12.0	12.0		6.0
16.0	–		8.0

Sheet Thickness						Limit a	Limit b	Limit c
Cold Rolled Low Carbon Steel (for Shims)
0.1						1.0	–
0.2
0.3
0.5

Sheet Thickness						Limit a	Limit b	Limit c
304 Stainless Steel (H) (for Shims)
0.05						0.5	–
0.1
0.2
0.3
0.5
0.8						0.8
1.0						1.0

Sheet Thickness	Limit a	Limit b	Limit c
Perforated Metal —60° staggered round hole type—
0.8	10.0	–
1.0
1.5

Sheet Thickness				Limit a	Limit b	Limit c
PET	Acrylic	Polycarbonate	PVC
3.0	3.0	3.0	3.0	2.0	–
5.0	5.0	5.0	5.0

Sheet Thickness	Limit a	Limit b	Limit c
Aluminum composite sheet (core material: foam polyethylene resin)
3.0	2.0	–

Example

• *The distance between a tapped hole and the edge or between tapped holes is determined by the minimum distance from the outermost diameter of the tapped hole.
• *The distance between friction drilled/tapped holes is determined from the minimum distance from the center of the hole.
• *The distance between a countersunk hole and the edge or between countersunk holes is determined by the minimum distance from the outermost diameter of the counterbored part.

Minimum Diameter for Through Holes
Minimum Width of Rectangular/Slotted Holes/Other Holes

Machining Limits, Size Range

Sheet Thickness				Limit d	Limit w1	Limit w2
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	304 SS (No.1) 304 SS (2B) 430 SS (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	Perforated Metal —60° staggered round hole type—
0.8	0.8	0.8	0.8	0.4	0.8	0.8
1.0	1.0	1.0	1.0	0.5	1.0	1.0
1.2	1.2	1.2	–	0.6	1.2	1.2
–	1.5	1.5	1.5	0.7	1.5	1.5
1.6	–	1.6	–	0.8	1.6	1.6
2.0	2.0	2.0		1.0	2.0	2.0
2.3	–	–		1.1	2.3	2.3
–	2.5	2.5		1.2	2.5	2.5
–	3.0	3.0		1.5	3.0	3.0
3.2	–	–		1.6	3.0	3.0
–	4.0	4.0		2.0	3.0	3.0
4.5	–	–		2.2	4.0	4.0
–	5.0	5.0		2.5
6.0	–	–		3.0
–	6.0	6.0			6.0	6.0
9.0	9.0	–		4.5
10.0	10.0			5.0
12.0	12.0			6.0	8.0	8.0
16.0	–			8.0	10.0	10.0

Sheet Thickness	Limit d	Limit w1	Limit w2
304 Stainless Steel (single-sided #400-grit polished) 304 Stainless Steel (Single-sided hairline finish)
0.8	1.6	3.0	3.0
1.0	1.6
1.2	2.0
1.5	2.5
2.0	4.0	4.5	4.5
3.0	4.5

Sheet Thickness		Limit d	Limit w1	Limit w2
Cold Rolled Low Carbon Steel (for Shims)	304 Stainless Steel(H) (for Shims)
–	0.05	0.3	0.5	0.5
0.1	0.1
0.2	0.2
0.3	0.3
0.5	0.5
–	0.8	1.0	0.8	0.8
	1.0	1.0	1.0	1.0

Sheet Thickness				Limit d	Limit w1	Limit w2
PET	Acrylic	Polycarbonate	PVC
3.0	3.0	3.0	3.0	1.5	3.0	7.0
5.0	5.0	5.0	5.0

Sheet Thickness	Limit d	Limit w1	Limit w2
Aluminum composite sheet (core material: foam polyethylene resin)
3.0	2.0	3.0	7.0

Example

Minimum Size of Cutout Shape

Machining Limits, Size Range

Material	Sheet Thickness	Minimum Value	Limit Value
		Cutout Width/Depth A
Cold Rolled Low Carbon Steel (for Shims)	0.1	0.5	0.3
	0.2
	0.3
	0.5	0.8	0.4
304 Stainless Steel(H) (for shims)	0.05	0.5	0.3
	0.1
	0.2
	0.3
	0.5	0.8	0.4
	0.8	1.2	0.5
	1.0	1.5
PET	3.0	–	7.0
	5.0
Acrylic	3.0
	5.0
Polycarbonate	3.0
	5.0
PVC	3.0
	5.0
Aluminum composite sheet (core material: foam polyethylene resin)	3.0	–	7.0

Example

Minimum Slit Width (when the part is unfolded).

Machining Limits, Size Range

Sheet Thickness				Minimum Slit Width (when the part is unfolded).
EN 1.0330 equiv. EN 1.0320 equiv. (hot coiled) EN 1.0038 equiv. EN 1.0330 equiv. (Electrolytic Zinc Plating)	304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	Perforated Metal —60° staggered round hole type—	Guaranteed Width a	Limit a
0.8	0.8	0.8	0.8	0.8	0.5
1.0	1.0	1.0	1.0	1.0	0.5
1.2	1.2	1.2	–	1.2	0.5
–	1.5	1.5	1.5	1.5	0.5
1.6	–	1.6	–	1.6	0.5
2.0	2.0	2.0		2.0	0.5
2.3	–	–		2.3	0.8
–	2.5	2.5		2.5	0.8
–	3.0	3.0		3.0	1.5
3.2	–	–		3.2	1.6
–	4.0	4.0		4.0	2.0
4.5	–	–		4.5	2.3
–	5.0	5.0		5.0	2.5
6.0	6.0	6.0		6.0	3.0
9.0	9.0	–		9.0	4.5
10.0	10.0			10.0	5.0
12.0	12.0			12.0	6.0
16.0	–			16.0	8.0

Example

Folded Part View

Unfolded Part View

• Detailed Slit View

Minimum Bending Height : Normal Bending

Machining Limits, Size Range

Material	Sheet Thickness	Limit h

Low Carbon Steel (Cold/Hot) 1018 Carbon Steel	0.8	4.2
	1.0	4.3
	1.2	5.5
	1.6	6.8
	2.0	8.2
	2.3	9.4
	3.2	13.3
	4.5	17.4
	6.0	23.5
	9.0	33.5
	10.0	46.5
	12.0	62.0
	16.0	88.5
Low Carbon Steel (Electrolytic Zinc Plating)	0.8	4.2
	1.0	4.3
	1.2	4.5
	1.6	5.8
	2.0	7.0
	2.3	8.3
	3.2	11.1
304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	0.8	4.2
	1.0	4.3
	1.2	4.5
	1.5	6.0
	2.0	7.1
	2.5	11.3
	3.0	11.5
	4.0	17.2
	5.0	23.5
	6.0	25.0
	9.0	39.0
	10.0	46.5
	12.0	62.0
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	4.2
	1.0	4.3
	1.2	5.5
	1.5	6.0
	1.6	6.0
	2.0	8.2
	2.5	10.0
	3.0	13.3
	4.0	17.2
	5.0	27.0
	6.0	28.0
Perforated Metal —60° staggered round hole type—	0.8	4.2
	1.0	4.3
	1.5	6.0

Example

Minimum Bending Height : R-bend shape

Machining Limits, Size Range

Material	Sheet Thickness	Limit h
Low Carbon Steel	0.8	2.6
	1.0	2.3
	1.2	3.1
	1.6	3.6
	2.0	4.2
	2.3	4.8
	3.2	6.9
Low Carbon Steel (Electrolytic Zinc Plating)	0.8	2.6
	1.0	2.3
	1.2	2.1
	1.6	2.6
	2.0	3.0
	2.3	3.7
	3.2	4.7
304 SS (2B) 304 SS (#400) 430 SS (2B)	0.8	2.6
	1.0	2.3
	1.2	2.1
	1.5	3.0
	2.0	3.1
	2.5	6.3
	3.0	5.5
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	2.6
	1.0	2.3
	1.2	2.1
	1.5	3.0
	1.6	2.8
	2.0	3.1
	2.5	5.0
	3.0	5.5
Perforated Metal —60° staggered round hole type—	0.8	2.6
	1.0	2.3
	1.5	3.0

Example

The minimum bending height

Machining Limits, Size Range

Material	Sheet Thickness	Surface Treatment
		None	Paint Electroless Nickel Plating Black oxide Trivalent Chromate (Clear)	Trivalent Chromate (Black)	Electrolytic Galvanized Hot Galvanized
		Limit a
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Cold Rolled) with Electrolytic Zinc Plating Low Carbon Steel (Cold Rolled) with Hot Zinc Plating	0.8	8.2	6.8	7.1	–
	1.0	8.5	6.8	7.5
	1.2	9.9	9.0	8.4
	1.6	11.6	9.5	9.2
	2.0	13.1	13.5	11.0
	2.3	13.7	14.0	11.6
	3.2	19.4	22.0	15.4
	4.5	28.0	28.0	20.0
	6.0	37.3	32.0	30.0
	9.0	56.8	57.0	–
	10.0	75.1	–
	12.0	91.0
	16.0	158.0

Material	Sheet Thickness	Surface Finish
		2B Single-sided #400 Brushed Single-sided hairline finish No.1
		Limit a
304 Stainless Steel 430 Stainless Steel	0.8	6.9
	1.0	7.4
	1.2	7.9
	1.5	9.7
	2.0	12.6
	2.5	17.6
	3.0	18.6
	4.0	26.6
	5.0	33.8
	6.0	36.4
	9.0	56.8
	10.0	75.1
	12.0	91.0

Material	Sheet Thickness	Surface Treatment
		None	Clear Anodize Black Anodize Black Anodize (matte) (Outer Diameter ≤ 300 mm)
		Clear Anodize Black Anodize Black Anodize (matte) (Outer Diameter > 300 mm)
		Limit a
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	6.8	7.1
	1.0	6.8	7.5
	1.2	9.0	9.0
	1.5	9.5	9.0
	1.6	9.5	9.5
	2.0	13.5	11.0
	2.5	15.5	15.5
	3.0	22.0	15.0
	4.0	28.0	19.0
	5.0	44.0	28.0
	6.0	48.0	48.0

Material	Sheet Thickness	Limit a
Perforated Metal —60° staggered round hole type—	0.8	6.8
	1.0	6.8
	1.5	9.5

Example

Width Specification Range for Bending

Machining Limits, Size Range

Sheet Thickness			Dimensional Range w
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
0.8	0.8	0.8	5～1200
1.0	1.0	1.0
1.2	1.2	1.2
–	1.5	1.5
1.6	–	1.6
2.0	2.0	2.0
2.3	–	–	10～1200
–	2.5	2.5
–	3.0	3.0
3.2	–	–
–	4.0	4.0
4.5	–	–
–	5.0	5.0
6.0	–	–
–	6.0	6.0	10～800
9.0	–	–	10～835
–	9.0		10～550
10.0	–		20～835
–	10.0		20～550
12.0	–		20～750
–	12.0		20～500
16.0	–

Sheet Thickness	Dimensional Range w
Perforated Metal —60° staggered round hole type—
0.8	30–900
1.0
1.5

Example

Minimum Distance Between a Hole and Bend : Normal Bending

Machining Limits, Size Range

Material	Sheet Thickness	Hole Type
		Through Hole		Slotted/Rectangular Hole		Tapped Hole		Burring Tap Hole	Countersunk Holes
		Minimum a *1	Limit a	Minimum a *1	Limit a	Minimum a *2	Limit a	Limit a *1	Minimum a	Limit a

Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	0.8	4.2	2.0	–	4.2	–	–	4.2	–	–
	1.0	4.3			4.3	4.8	2.7	4.3
	1.2	5.5	3.0		5.5	6.0	3.9	5.5
	1.6	6.8	3.5		6.8	7.3	5.2	6.8
	2.0	8.0	4.0		8.0	8.7	6.6	–	8.0	4.0
	2.3	9.3	5.0		9.3	9.9	7.8		9.3	5.0
	3.2	13.3	6.5		13.3	13.8	11.7		12.1	6.5
	4.5	17.4	9.5		17.4	18.4	16.3		18.4	9.5
	6.0	23.5	14.0		23.5	24.5	22.4		24.5	16.0
	9.0	33.5	21.5		33.5	34.5	32.4		33.5	21.5
	10.0	46.5	22.5		48.5	47.5	47.5		46.5	46.5
	12.0	62.0	26.5		62.0	63.0	63.0		62.0	62.0
	16.0	88.5	34.5		88.5	89.5	89.5		88.5	88.5
Low Carbon Steel (Electrolytic Zinc Plating)	0.8	4.2	2.0	4.2	2.0	–	–	4.2	–	–
	1.0	4.3		4.3		5.3	3.2	4.3
	1.2	4.5	3.0	4.5	3.0	5.5	3.4	4.5
	1.6	5.8	3.5	–	5.8	6.8	4.7	5.8
	2.0	7.0	4.0	7.0	4.0	8.0	5.9	–	8.0	4.0
	2.3	8.3	5.0	8.3	5.0	9.3	7.2		9.3	5.0
	3.2	11.1	6.5	11.1	6.0	12.1	10.0		12.1	6.5
304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	0.8	4.2	2.0	–	4.2	–	–	4.2	–	–
	1.0	4.3			4.3	5.3	3.2	4.3
	1.2	4.5	3.0		4.5	5.5	3.4	4.5
	1.5	6.0	3.5		6.0	7.0	4.9	6.0
	2.0	7.1	4.0		7.1	8.1	6.0	–	8.1	4.0
	2.5	11.3	6.3		11.3	12.3	10.2		12.3	6.3
	3.0	11.5	6.5		11.5	12.5	10.4		12.5	6.5
	4.0	17.2	11.5		17.2	18.2	16.1		18.2	11.5
	5.0	23.5	14.0		23.5	24.5	22.4		24.5	15.0
	6.0	25.0	19.0		25.0	26.0	24.0		26.0	17.0
	9.0	39.0	20.5		39.0	40.0	40.0		39.0	39.0
	10.0	46.5	22.5		46.5	47.5	47.5		46.5	46.5
	12.0	62.0	26.5		62.0	63.0	63.0		62.0	62.0
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	4.2	4.2	–	4.2	–	–	4.2	–	–
	1.0	4.3	4.3		4.3	5.2	4.3	4.3
	1.2	5.5	5.5		5.5	5.5	5.5	5.5
	1.5	6.0	6.0		6.0	7.0	6.0	6.0
	1.6	6.0	6.0		6.0	7.0	6.0	6.0
	2.0	8.2	8.2		8.2	8.2	8.2	–	8.2	8.2
	2.5	10.0	10.0		10.0	11.0	10.0		10.5	10.0
	3.0	13.3	13.3		13.3	13.3	13.3		13.3	13.3
	4.0	17.2	17.2		17.2	18.2	17.2		18.2	17.2
	5.0	27.0	27.0		27.0	27.0	27.0		27.0	27.0
	6.0	28.0	28.0		28.0	28.0	28.0		28.0	28.0
Perforiertes Metall —60° staggered round hole type—	0.8	4.2	2.0	–	4.2	–	–	–	–	–
	1.0	4.3			4.3
	1.5	6.0	3.5		6.0

• *1 The hole may be deformed if it is below the minimum value.

  The dimensions are therefore inaccurate, but will be processed as they are.

• *2 If the distance is under the minimum value, re-tapping will be necessary and the fit may be affected.

Example

If there are internal angles of less than 90°, machining may not be possible even within the safe value range. If this is the case, meviy Support will contact you.

Minimum Distance Between a Hole and Bend : R-bend shape

Machining Limits, Size Range

Material	Sheet Thickness	Hole Type
		Through Hole		Slotted/Rectangular Hole		Tapped Hole		Burring Tap Hole	Countersunk Holes
		Minimum a *1	Limit a	Minimum a *1	Limit a	Minimum a *2	Limit a	Limit a *1	Minimum a	Limit a

Low Carbon Steel Low Carbon Steel (Hot)	0.8	2.6	0.4	–	2.6	–	–	2.6	–	–
	1.0	2.3	0.1		2.3	2.8	0.7	2.3
	1.2	3.1	0.6		3.1	3.6	1.5	3.1
	1.6	3.6	0.3		3.6	4.1	2.0	3.6
	2.0	4.0	0.1		4.0	4.7	2.6	–	4.0	0.1
	2.3	4.7	0.4		4.7	5.3	3.2		4.7	0.4
	3.2	6.9	0.1		6.9	7.4	5.3		5.7	0.1
Low Carbon Steel (Electrolytic Zinc Plating)	0.8	2.6	0.4	2.6	0.4	–	–	2.6	–	–
	1.0	2.3	0.1	2.3	0.1	3.3	1.2	2.3
	1.2	2.1	0.6	2.1	0.6	3.1	1.0	2.1
	1.6	2.6	0.3	–	2.6	3.6	1.5	2.6
	2.0	3.0	0.1	3.0	0.1	4.0	1.9	–	4.0	0.1
	2.3	3.7	0.4	3.7	0.4	4.7	2.6		4.7	0.4
	3.2	4.7	0.1	4.7	0.1	5.7	3.6		5.7	0.1
304 SS (2B) 304 SS (#400) 430 SS (2B)	0.8	2.6	0.4	–	2.6	–	–	2.6	–	–
	1.0	2.3	1.0		2.3	3.3	1.2	2.3
	1.2	2.1	0.6		2.1	3.1	1.0	2.1
	1.5	3.0	0.5		3.0	4.0	1.9	3.0
	2.0	3.1	0.1		3.1	4.1	2.0	–	4.1	0.1
	2.5	6.3	1.3		6.3	7.3	5.2		7.3	1.3
	3.0	5.5	0.5		5.5	6.5	4.4		6.5	0.5
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	2.6	0.4	–	2.6	–	–	2.6	–	–
	1.0	2.2	0.1		2.3	3.2	1.1	2.2
	1.2	1.9	0.1		3.1	2.9	0.8	1.9
	1.5	3.0	0.5		3.0	4.0	1.9	3.0
	1.6	2.8	0.3		2.8	3.8	1.7	2.8
	2.0	3.1	0.1		4.2	4.1	2.0	–	4.1	0.1
	2.5	5.0	0.1		5.0	6.0	4.0		5.5	0.1
	3.0	5.5	0.1		7.3	6.5	4.4		6.5	0.1
Perforiertes Metall —60° staggered round hole type—	0.8	2.6	0.4	–	2.6	–	–	–	–	–
	1.0	2.3	0.1		2.3
	1.5	3.0	0.5		3.0

• *1 The hole may be deformed if it is below the minimum value.

  The dimensions are therefore inaccurate, but will be processed as they are.

• *2 If the distance is under the minimum value, re-tapping will be necessary and the fit may be affected.

Example

Slit on the bending line (except for acute angle bending shapes with an internal angle of less than 90°).

Machining Limits, Size Range

Sheet Thickness		Minimum a *1	Minimum b *2	Limit c
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B) 5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
0.8	0.8	0.8	1.2	0.5
1.0	1.0	1.0	1.5
1.2	1.2	1.2	1.8	0.6
–	1.5	1.5	2.3	0.7
1.6	1.6 *4	1.6	2.4	0.8
2.0	2.0	2.0	3.0	1.0
2.3	–	2.3	3.5
–	2.5	2.5	3.8	1.2
–	3.0	3.0	4.5	1.5
3.2	–	3.2	4.8
–	4.0	4.0	6.0	2.0
4.5	–	4.5	6.7	2.2
–	5.0	5.0	7.5	2.5
6.0	6.0	6.0	9.0	3.0
9.0	–	9.0	13.5	4.0
10.0	10.0	10.0	15.0	5.0
12.0	12.0	12.0	18.0	6.0
16.0	–	16.0	24.0	8.0

• *1 When a is not secured by the slit’s horizontal width, or when there is an acute angle bend, we can still provide an estimate, but instead of the limit value c, the aforementioned “Minimum distance between the hole and the bend” will be the limit value for the hole position.
• *2 If the slit’s height is smaller than b or the outside R (fillet size) of the bend, automatic quotation is not possible.
• *3 The limit value c is uniformly 3.0 mm only when the nearby hole in the right figure is a burring tap.
• *4 Only for 5052 Aluminum Alloy

Example

*Reference) Comparative example of machining limits of hole positions with or without openings

Machining Limits, Size Range

		No Opening (See: Minimum Distance Between a Hole and Bend h1			With Opening (Minimum Distance Between Nearest Hole and Bend) h2
Material	Sheet Thickness	Minimum Distance Between a Through Hole and Bend	Minimum Distance Between a Rectangular/Slotted Hole and Bend	Minimum Distance Between a Tapped Hole and Bend
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel Low Carbon Steel (Electrolytic Zinc Plating)	0.8	2.0	2.0	–	1.7
	1.0			2.7	2.0
	1.2	3.0	3.0	3.9	2.4
	1.6	3.5	3.5	5.2	3.2
	2.0	4.0	4.0	6.6	4.0
	2.3	5.0	5.0	7.8	4.5
	3.2	6.5	6.5	11.7	6.3
	4.5	9.5	9.5	16.3	8.9
	6.0	14.0	14.0	22.4	12.0
	9.0	21.5	21.5	32.4	17.5
	10.0	22.5	22.5	47.5	20.0
	12.0	26.5	26.5	63.0	24.0
	16.0	34.5	34.5	89.5	32.0

		No Opening (See: Minimum Distance Between a Hole and Bend h1			With Opening (Minimum Distance Between Nearest Hole and Bend) h2
Material	Sheet Thickness	Minimum Distance Between a Through Hole and Bend	Minimum Distance Between a Rectangular/Slotted Hole and Bend	Minimum Distance Between a Tapped Hole and Bend
304 SS (No.1) 304 SS (2B) 304 SS (#400) 304 SS (Hairline Finish) 430 SS (2B)	0.8	2.0	4.2	–	1.7
	1.0		4.3	3.2	2.0
	1.2	3.0	4.5	3.4	2.4
	1.5	3.5	6.0	4.9	3.0
	2.0	4.0	7.1	6.0	4.0
	2.5	6.3	11.3	10.2	5.0
	3.0	6.5	11.5	10.4	6.0
	4.0	11.5	17.2	16.1	8.0
	5.0	14.0	23.5	22.4	10.0
	6.0	19.0	25.0	24.0	12.0
	9.0	20.5	20.5	40.5	17.5
	10.0	22.5	22.5	47.5	20.0
	12.0	26.5	26.5	63.0	24.0

		No Opening (See: Minimum Distance Between a Hole and Bend h1			With Opening (Minimum Distance Between Nearest Hole and Bend) h2
Material	Sheet Thickness	Minimum Distance Between a Through Hole and Bend	Minimum Distance Between a Rectangular/Slotted Hole and Bend	Minimum Distance Between a Tapped Hole and Bend
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	0.8	2.0	2.0	–	1.7
	1.0			3.1	2.0
	1.2	2.5	2.5	3.2	2.4
	1.5	3.5	3.5	4.9	3.0
	1.6				3.2
	2.0	4.0	4.0	6.0	4.0
	2.5	4.5	4.5	9.0	5.0
	3.0	5.0	5.0	10.4	6.0
	4.0	11.5	11.5	16.1	8.0
	5.0	12.0	12.0	16.8	10.0
	6.0	13.0	13.0	21.0	12.0

Image/Prerequisites

• These comparative examples are a selection of representative materials and hole types. It is also effective with other materials and hole types that are not listed.
• Comparison of the outer radius of a bend (fillet size) and the height of the opening on the bend line when modeling to the minimum value “b.” · If the height of the opening is modeled to greater than “b,” the h2value will differ.

Minimum distance between nuts

Machining Limits, Size Range

Press-fit nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
Nominal diameter	M3	14	15.5	14
	M4	15	17	15
	M5	15	18	15
	M6	17	20	17
	M8	19	23	19

Weld (spot) nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)
Nominal diameter	M4	21	21
	M5	21	21
	M6	23	23
	M8	25	25
	M10	28	27
	M12	30	29

Example

*If multiple sizes of nuts are mounted, the distance will be decided by the minimum value of the larger nut.

Minimum distance between nut and hole

Machining Limits, Size Range

Press-fit nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
Nominal diameter	M3	11.2	12.8	11.2
	M4	14.4	13.5	12.1
	M5	14.4	14	12.7
	M6	15.6	15	13.8
	M8	17	16.5	15.6

Weld (spot) nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)
Nominal diameter	M4	16	15.5
	M5	16	15.5
	M6	18	16.5
	M8	21	17.5
	M10	23	18.5
	M12	25	19.5

Example

Minimum distance between nut and edge of the material

Machining Limits, Size Range

Press-fit nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
Nominal diameter	M3	4.5	6.7	4.5
	M4	5.5	7.6	5.5
	M5	6.5	8.2	6.5
	M6	8	9.3	8
	M8	10	11.1	10

Weld (spot) nut		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)
Nominal diameter	M4	7.5	7.9
	M5	7.5	7.9
	M6	9	9.1
	M8	10.4	10.7
	M10	12.5	12.9
	M12	14.5	15

Example

Maximum distance between nut and edge of the material

Machining Limits, Size Range

Maximum distance		material
		Low Carbon Steel (Cold/Hot) Low Carbon Steel (Electrolytic Zinc Plating)	304 Stainless Steel (2B) 304 Stainless Steel (Single-Sided #400-Grit Polished) 304 Stainless Steel (Single-sided hairline finish) 430 Stainless Steel (2B)	5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​
Press-fit nut（coarse）		450	290	450
Weld nut（coarse）		500	930 *	500

*The maximum distance would be 500 when R bending is included

Example

*With the plate developed into a flat plate, measure the distance between any material edge and the center of the nut, and use the smallest value to judge it can produce or not.

Minimum distance between engravings, between edge or hole

Machining Limits, Size Range

Range of Machining Limits
Plate Thickness			Engraving and edge	Through Hole・Tapped Hole・Countersunk Holes・Slotted/Rectangular hole		Burring Tap Hole
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel	304 SS (No.1) 304 SS (2B) 430 SS (2B)	5052 Aluminum Alloy	Limit a	Minimum b	Limit b	Minimum c	Limit c
0.8	0.8	0.8	2.0	4.0	2.0	5.0	3.0
1.0	1.0	1.0
1.2	1.2	1.2
–	1.5	1.5
1.6	–	1.6
2.0	2.0	2.0				–	–
2.3	–	–
–	2.5	2.5
–	3.0	3.0
3.2	–	–
–	4.0	4.0
4.5	–	–
–	5.0	5.0
6.0	6.0	6.0
9.0	9.0	–
10.0	10.0
12.0	12.0
16.0	–

Example

• *All holes are calculated from the outermost diameter to the minimum distance fromthe outside of the engraved letter.
• *Only for friction drilled/tapped holes, the limit valuec is uniformly3.0 mm.
• *If the value is below the guaranteed range, the engraved may be deformed.

Minimum distance between engraving and nut

Machining Limits, Size Range

Nut (Press-fit)		material properties
		Low Carbon Steel (Cold/Hot)		304 SS (2B) 430 SS (2B)		5052 Aluminum Alloy
		Minimum a	Limit a	Minimum a	Limit a	Minimum a	Limit a
Nominal diameter	M3	6.5	4.5	8.7	6.7	6.5	4.5
	M4	7.5	5.5	9.6	7.6	7.5	5.5
	M5	8.5	6.5	10.2	8.2	8.5	6.5
	M6	10.0	8.0	11.3	9.3	10.0	8.0
	M8	12.0	10.0	13.1	11.1	12.0	10.0

Nut (spot welding)		material properties
		Low Carbon Steel (Cold/Hot)		304 SS (2B) 430 SS (2B)
		Minimum a	Limit a	Minimum a	Limit a
Nominal diameter	M4	9.5	7.5	9.9	7.9
	M5	9.5	7.5	9.9	7.9
	M6	11.0	9.0	11.1	9.1
	M8	12.4	10.4	12.7	10.7
	M10	14.5	12.5	14.9	12.9
	M11	16.5	14.5	17.0	15.0

Example

• *The minimum bending height for each material and thickness is applied to the minimum distance (limit value) from the outside of the engraved letter.
• *If the value is below the guaranteed range, the engraved may be deformed.

Minimum distance between engraving and bending

Machining Limits, Size Range

Machining Limits
material properties	Plate Thickness	Minimum h	Limit h
Low Carbon Steel (Cold/Hot) 1018 Carbon Steel	0.8	6.2	4.2
	1.0	6.3	4.3
	1.2	7.5	5.5
	1.6	8.8	6.8
	2.0	10.2	8.2
	2.3	11.4	9.4
	3.2	15.3	13.3
	4.5	19.4	17.4
	6.0	25.5	23.5
	9.0	41.0	39.0
	10.0	48.5	46.5
	12.0	64.0	62.0
	16.0	90.5	88.5
304 SS (2B) 430 SS (2B) 304 SS (No.1)	0.8	6.2	4.2
	1.0	6.3	4.3
	1.2	6.5	4.5
	1.5	8.0	6.0
	2.0	9.1	7.1
	2.5	13.3	11.3
	3.0	13.5	11.5
	4.0	19.2	17.2
	5.0	25.5	23.5
	6.0	27.0	25.0
	9.0	41.0	39.0
	10.0	48.5	46.5
	12.0	64.0	62.0
5052 Aluminum Alloy	0.8	6.2	4.2
	1.0	6.3	4.3
	1.2	7.5	5.5
	1.5	8.0	6.0
	1.6	8.0	6.0
	2.0	10.2	8.2
	2.5	12.0	10.0
	3.0	15.3	13.3
	4.0	19.2	17.2
	5.0	29.0	27.0
	6.0	30.0	28.0

Example

• *The minimum bending height for each material and thickness is applied to the minimum distance (limit value) from the outside of the engraved letter.
• *If the value is below the guaranteed range, the engraved may be deformed.

Minimum Angle for Acute Angle Bending

Machining Limits, Size Range

• The angle (θ) for acute angle bending must be 45° or more.
• (However, when the Sheet Thickness is 9 mm, the acute angle (θ) must be 88° or more.)

Material	Sheet Thickness	Bend angle
304 SS (2B)	6.0	θ≥50°
5052 Aluminum Alloy 5052 AL Alloy Pre-Finish, Clear Anodize​ 5052 AL Alloy Pre-Finish, Black Anodize​	2.5　3.0　4.0　5.0	θ≥60°
	6.0	θ≥88°
Low Carbon Steel (Cold/Hot)	4.5　6.0
304 SS (No.1)	9.0　10.0　12.0
1018 Carbon Steel	9.0　10.0　12.0　16.0

Example

Minimum Radius of Rectangular Holes

Machining Limits, Size Range

The radius (R) of the corners of a rectangular hole must be 0.5 mm or more.
(For clear resin/composite material, this must be 3 mm or more.)

Example