To convert from millimeters (mm) to inches:
| Factor | Value |
|---|---|
| 1 inch to mm | 25.4 mm |
| 1 mm to inch | 0.03937 inches |
A 90mm drill bit is commonly used in:
| Size (Mm) | Size (Inches) | Use | Page |
|---|---|---|---|
| 88 mm | 3.4645669291 inches | General purpose drilling | View |
| 89 mm | 3.5039370079 inches | General purpose drilling | View |
| 90 mm | 3.5433070866 inches | General purpose drilling | View |
| 91 mm | 3.5826771654 inches | General purpose drilling | View |
| 92 mm | 3.6220472441 inches | General purpose drilling | View |
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