To convert from millimeters (mm) to inches:
| Factor | Value |
|---|---|
| 1 inch to mm | 25.4 mm |
| 1 mm to inch | 0.03937 inches |
A 109mm drill bit is commonly used in:
| Size (Mm) | Size (Inches) | Use | Page |
|---|---|---|---|
| 107 mm | 4.2125984252 inches | General purpose drilling | View |
| 108 mm | 4.2519685039 inches | General purpose drilling | View |
| 109 mm | 4.2913385827 inches | General purpose drilling | View |
| 110 mm | 4.3307086614 inches | General purpose drilling | View |
| 111 mm | 4.3700787402 inches | General purpose drilling | View |
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