Imperial / Metric Conversion Chart

(Conversions are approximate)

1/64

0.4mm

1/32

0.8mm

1/16

1.5mm

3/32

2.5mm

1/8

3.0mm

3/16

5.0mm

6.5mm

3/8

9.0mm

12.5mm

19mm

1

25mm

12

300mm

24

610mm

36

915mm