Range of Machining Limits

Inch Thickness Gauge Standard
Metric Thickness Gauge Standard
  • 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 RangeExample
Cold Rolled Low Carbon
Steel Hot Rolled Low Carbon Steel		Sheet thickness(Gauge) Thickness (Inch)Limit aLimit bLimit c
220.0299″0.5Friction drilled tapped hole is not available in Inch gauge sheetmetal
200.0359″0.5
190.0418″0.5
180.0478″1.0
170.0538″1.0
160.0598″1.0
140.0747″1.0
130.0897″1.0
120.1046″1.5
110.1196″1.5
100.1345″2.0
60.1943″2.0
(1/4)0.2500″2.5
(3/8)0.3750″4.0
304 Stainless Steel220.0312″0.5
200.0375″0.5
190.0437″0.5
180.0500″1.0
170.0562″1.0
160.0625″1.0
140.0781″1.0
130.0937″1.0
120.1094″1.5
110.1250″1.5
100.1406″2.0
80.1719″2.0
70.1875″2.0
30.2500″2.5
5052 Aluminium 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
Example

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

Machining Limits, Size RangeExample
Cold Rolled Low Carbon Steel
Hot Rolled Low Carbon Steel		Sheet thickness(Gauge) Thickness (Inch)Limit dLimit w1Limit w2
220.0299″0.40.80.8
200.0359″0.51.01.0
190.0418″0.51.01.0
180.0478″0.61.21.2
170.0538″0.61.21.2
160.0598″0.81.61.6
140.0747″1.02.02.0
130.0897″1.22.32.3
120.1046″1.42.72.7
110.1196″1.63.23.2
100.1345″1.83.53.5
60.1943″2.64.94.9
(1/4)0.2500″6.16.16.1
(3/8)0.3750″9.19.19.1
304 Stainless Steel220.0312″0.40.80.8
200.0375″0.51.01.0
190.0437″0.51.01.0
180.0500″0.61.21.2
170.0562″0.61.21.2
160.0625″0.81.61.6
140.0781″1.02.02.0
130.0937″1.22.32.3
120.1094″1.42.72.7
110.1250″1.63.23.2
100.1406″1.83.53.5
80.1719″2.24.34.3
70.1875″2.34.04.0
30.2500″3.04.04.0
5052 Aluminium Alloy
6061 Aluminum Alloy		–0.0200″0.20.50.5
–0.0250″0.30.60.6
–0.0320″0.40.80.8
–0.0400″0.51.01.0
–0.0500″0.61.21.2
–0.0630″0.81.61.6
–0.0800″1.02.02.0
–0.0900″1.22.32.3
–0.1000″1.22.32.3
–0.1250″1.63.23.2
Example

Minimum Distance Between a Hole and Bend

Machining Limits, Size RangeExample
MaterialSheet thickness (Gauge) Thickness (Inch)Through Hole Slotted Hole Rectangular HoleTapped HoleBurring TapCountersunk Hole
Minimum Value aLimit aMinimum Value aLimit aLimit aMinimum Value aLimit a
Cold Rolled Low Carbon Steel
Hot Rolled Low Carbon Steel		220.0299″4.22.04.01.9 4.21.0
200.0359″4.32.04.82.74.71.4
190.0418″4.32.04.82.75.21.8
180.0478″5.53.06.03.95.72.2
170.0538″5.53.06.03.96.22.6
160.0598″6.83.57.35.26.73.0
140.0747″8.04.08.76.68.04.0
130.0897″9.35.09.97.89.35.0
120.1046″10.55.611.39.210.16.0
110.1196″13.36.513.811.712.16.5
100.1345″13.77.214.612.512.78.0
60.1943″19.310.320.418.318.011.3
304 Stainless Steel220.0312″4.22.04.01.9 4.21.0
200.0375″4.32.04.82.74.71.4
190.0437″4.32.04.82.75.21.8
180.0500″5.53.06.03.95.72.2
170.0562″6.83.57.35.26.73.0
160.0625″6.83.57.35.26.73.0
140.0781″8.04.08.76.68.04.0
130.0937″9.35.09.97.89.35.0
120.1094″10.55.611.39.210.16.0
110.1250″13.36.513.811.712.16.5
100.1406″13.77.214.612.512.78.0
80.1719″16.68.817.615.515.110.0
70.1875″17.49.518.416.318.49.5
30.2500″23.813.125.123.022.614.7
5052 Aluminium Alloy
6061 Aluminum Alloy		–0.0200″3.01.33.11.0 3.70.6
–0.0250″3.31.53.41.33.70.6
–0.0320″4.22.04.01.94.21.0
–0.0400″4.32.04.82.74.71.4
–0.0500″5.53.06.03.95.72.2
–0.0630″6.83.57.35.26.73.0
–0.0800″8.04.08.76.68.04.0
–0.0900″9.35.09.97.89.35.0
–0.1000″9.35.09.97.89.35.0
–0.1250″13.36.513.811.712.16.5
  • *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.

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

Machining Limits, Size RangeExample
MaterialSheet thickness Thickness (Inch)Minimum Value a
*1		Minimum Value b
*2		Limit c
Cold Rolled Low Carbon Steel
Hot Rolled Low Carbon Steel		220.0299″0.81.140.5
200.0359″0.91.370.5
190.0418″1.11.590.5
180.0478″1.21.821.0
170.0538″1.42.061.0
160.0598″1.52.281.0
140.0747″1.92.851.0
130.0897″2.33.421.0
120.1046″2.73.991.5
110.1196″3.04.561.5
100.1345″3.45.132.0
60.1943″4.97.412.0

Cold Rolled Low Carbon Steel
(Electrolytic Galvanized)

Cold Rolled Low Carbon Steel
(Hot Galvanaized)

240.0276″0.71.050.5
220.0336″0.91.280.5
200.0396″1.01.520.5
180.0516″1.31.971.0
160.0635″1.62.421.0
140.0785″2.02.991.0
304 Stainless Steel220.0312″0.81.190.5
200.0375″1.01.430.5
190.0437″1.11.670.5
180.0500″1.31.911.0
170.0562″1.62.391.0
160.0625″1.62.391.0
140.0781″2.02.971.0
130.0937″2.43.571.0
120.1094″2.84.171.5
110.1250″3.24.771.5
100.1406″3.65.362.0
80.1719″4.46.562.0
70.1875″4.87.142.0
30.2500″6.49.532.5
5052 Aluminium Alloy
6061 Aluminum Alloy		–0.0200″0.50.760.5
–0.0250″0.60.950.5
–0.0320″0.81.220.5
–0.0400″1.01.520.5
–0.0500″1.31.911.0
–0.0630″1.62.401.0
–0.0800″2.03.051.0
–0.0900″2.33.431.0
–0.1000″2.53.811.0
–0.1250″3.24.761.5
  • *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
Example
Example

Minimum Bending Height

Machining Limits, Size Range Example
Material Sheet thickness (Gauge) Thickness (Inch) Limit h (mm)
  • Cold Rolled Low Carbon Steel
  • Hot Rolled Low Carbon Steel
 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
6 0.1943″ 19.5
304 Stainless Steel 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″ 10.7
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
5052 Aluminium 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
Example

Width Specification Range for Bending

Machining Limits, Size Range Example
Material Sheet thickness Thickness (Inch) Dimensional range w
  • Cold Rolled Low Carbon Steel
  • Hot Rolled Low Carbon Steel
 22 0.0299″ 5~1200
20 0.0359″
19 0.0418″
18 0.0478″
17 0.0538″
16 0.0598″
14 0.0747″
13 0.0897″ 10~1200
12 0.1046″
11 0.1196″
10 0.1345″
6 0.1943″
304 Stainless Steel 22 0.0312″ 5~1200
20 0.0375″
19 0.0437″
18 0.0500″
17 0.0562″
16 0.0625″
14 0.0781″ 10~1200
13 0.0937″
12 0.1094″
11 0.1250″
10 0.1406″
8 0.1719″
7 0.1875″
3 0.2500″
5052 Aluminium Alloy 6061 Aluminum Alloy – 0.0200″ 5~1200
– 0.0250″
– 0.0320″
– 0.0400″
– 0.0500″
– 0.0630″ 10~1200
– 0.0800″
– 0.0900″
– 0.1000″
– 0.1250″
Example

Minimum Angle for Acute Angle Bending

Machining Limits, Size RangeExample
  • The angle (θ) for acute angle bending must be 45° or more.
Example

Minimum Radius of Rectangular Holes

Machining Limits, Size Range Example
  • 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 Example
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
  • Perforated Metal
  • —60° staggered round hole type—
0.8 0.8 0.8 0.8 0.5 11.5 3.0
1.0 1.0 1.0 1.0
1.2 1.2 1.2 – 0.6
– 1.5 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
PET Acrylic Polycarbonate PVC
3.0 3.0 3.0 3.0 2.0 –
5.0 5.0 5.0 5.0
  • 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

Machining Limits, Size Range Example
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
  • 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 3.0 3.0
1.2 2.0 3.0 3.0
1.5 2.5 3.0 3.0
2.0 4.0 4.5 4.5
3.0 4.5 4.5 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 1.5 3.0 7.0
Example

Minimum Size of Cutout Shape

Machining Limits, Size Range Example
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
Example

Minimum Bending Height : Normal Bending

Machining Limits, Size Range Example
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 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 Example
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 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

Width Specification Range for Bending

Machining Limits, Size Range Example
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
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 Example
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 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 Example
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 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
Example
  • *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.

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

Machining Limits, Size Range Example
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
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 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.
 Example Example Example

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

Comparison Example of Representative Materials Image/Prerequisites
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 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
  • 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 Example
Press-fit nut material
  • Low Carbon Steel (Cold/Hot Rolled)
  • 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
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 Rolled)
  • 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
  • *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 Example
Press-fit nut material
  • Low Carbon Steel (Cold/Hot Rolled)
  • 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
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 Rolled)
  • 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 24.2
M5 21 24.2
M6 23 25.2
M8 25 26.2
M10 28 27.2
M12 30 28.2
Minimum distance between nut and edge of the material
Machining Limits, Size Range Example
Press-fit nut material
  • Low Carbon Steel (Cold/Hot Rolled)
  • 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
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 Rolled)
  • 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
Maximum distance between nut and edge of the material
Machining Limits, Size Range Example
Maximum distance material
  • Low Carbon Steel (Cold/Hot Rolled)
  • 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
Press-fit nut（coarse） 450 290 450
Weld nut（coarse） 500 930 * 500

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

Range of Machining Limits Example
Plate Thickness Engraving and edge Through Hole・Tapped Hole・Countersunk Holes Burring Tap Hole
  • Low Carbon Steel (Cold/Hot)
  • 1018 Carbon Steel
  • 304 SS (No.1)
  • 304 SS (2B)
  • 430 SS (2B)
 Limit a Minimum b Limit b Minimum c Limit c
0.8 0.8 2.0 4.0 2.0 5.0 3.0
  • *All holes are calculated from the outermost diameter to the minimum distance fromthe outside of the etched letter.
  • *Only for friction drilled/tapped holes, the limit valuec is uniformly3.0 mm.
  • *If the value is below the guaranteed range, the etched may be deformed.
1.0 1.0
1.2 1.2
– 1.5
1.6 –
2.0 2.0 – –
2.3 –
– 2.5
– 3.0
3.2 –
– 4.0
4.5 –
– 5.0
6.0 6.0
9.0 9.0
10.0 10.0
12.0 12.0
16.0 –

Minimum distance between engraving and nut

Nut (Press-fit) material properties Example
  • Low Carbon Steel (Cold/Hot)
  • 304 SS (2B)
  • 430 SS (2B)
Minimum a Limit a Minimum a Limit a
  • *The minimum bending height for each material and thickness is applied to the minimum distance (limit value) from the outside of the etched letter.
  • *If the value is below the guaranteed range, the etched may be deformed.
Nominal diameter M3 6.5 4.5 8.7 6.7
M4 7.5 5.5 9.6 7.6
M5 8.5 6.5 10.2 8.2
M6 10.0 8.0 11.3 9.3
M8 12.0 10.0 13.1 11.1
Nut (spot welding) material properties
  • Low Carbon Steel (Cold/Hot)
  • Low Carbon Steel (Electrolytic Zinc Plating)
  • 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

Minimum distance between engraving and bending

Machining Limits Example
material properties Plate Thickness Minimum h Limit h
  • Low Carbon Steel (Cold/Hot)
  • 1018 Carbon Steel
 0.8 6.2 4.2
  • *The minimum bending height for each material and thickness is applied to the minimum distance (limit value) from the outside of the etched letter.
  • *If the value is below the guaranteed range, the etched may be deformed.
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

Minimum Angle for Acute Angle Bending

Machining Limits, Size Range Example
  • 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 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 Example
  • 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

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