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Laser Cut Hole Diameter per Material Type & Thickness

The below table puts forward the recommended minimum hole size per material type and sheet thickness. The hole sizes given are for a round hole and relate to the material type and material thickness.

With smaller holes we would modify the lasers parameters to bring the power down which would slow down the laser to ensure the holes are cut cleaner.

Material Thickness

Mild Steel

Stainless

Aluminium

Galvanised

Zintec

Copper

Brass

MinMin Min Min Min Min Min

1.0mm

0.50

0.50

1.00

0.50

0.50

0.49

0.80

1.2mm

0.75

0.75

1.25

0.75

0.75

0.49

0.80

1.5mm

0.75

0.75

1.25

0.75

0.75

0.60

0.80

2.0mm

1.00

1.00

1.50

1.00

1.00

0.80

1.00

2.5mm

1.00

1.00

1.75

1.25

1.75

1.00

1.25

3.0mm

1.00

1.00

2.00

1.50

1.75

1.25

1.50

4.0mm

1.00

1.00

2.50

2.00

2.00

2.00

5.0mm

1.00

1.00

3.50

2.20

2.50

6.0mm

3.00

1.00

4.00

2.40

3.00

8.0mm

4.00

1.00

5.00

3.20

4.00

10.0mm

5.00

1.00

7.00

4.00

5.00

12.0mm

5.00

1.00

8.00

5.00

6.00

15.0mm

5.00

2.50

10.00

6.00

16.0mm

5.00

2.50

10.60

6.40

20.0mm

10.00

2.50

13.00

25.0mm

12.00

2.00

20.00

30.0mm

17.00

5.00

20.00

40.0mm

5.00

Address
ADS Laser Cutting Ltd 
Fox’s Site
Sunningdale Road
Braunstone Frith Ind Est 
Leicester
LE3 1UE

REGISTERED COMPANY NUMBER: 5355057
ALL RIGHTS RESERVED ©

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