To convert from millimeters (mm) to inches:
| Factor | Value |
|---|---|
| 1 inch to mm | 25.4 mm |
| 1 mm to inch | 0.03937 inches |
A 40mm drill bit is commonly used in:
| Size (Mm) | Size (Inches) | Use | Page |
|---|---|---|---|
| 38 mm | 1.4960629921 inches | General purpose drilling | View |
| 39 mm | 1.5354330709 inches | General purpose drilling | View |
| 40 mm | 1.5748031496 inches | General purpose drilling | View |
| 41 mm | 1.6141732283 inches | General purpose drilling | View |
| 42 mm | 1.6535433071 inches | General purpose drilling | View |
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