2 mm Drill Bit Size
A 2 mm drill bit is 0.0787 inches. The closest common fractional drill bit is 5/64 inch, which measures 0.0781 inches or 1.98 mm.
Quick Answer
Decimal
0.0787 in
Metric
2.00 mm
Closest
5/64 inch
2 mm Drill Bit Equivalent Chart
| Size | Decimal Inches | Metric | Note |
|---|---|---|---|
| 2 mm | 0.0787 in | 2.00 mm | Exact size |
| 5/64 inch | 0.0781 in | 1.98 mm | Closest common fractional size |
| #46 | 0.0810 in | 2.06 mm | Nearby numbered drill size |
| 1/16 inch | 0.0625 in | 1.59 mm | Undersized alternative for a tighter pilot hole |
Common Uses
Small pilot holes, light hardware, and metric fasteners that call for a 2 mm hole.
Exact vs Nearest Size
Choose the exact bit for threads, tight hardware fits, dowels, and precision layouts. Use the nearest common equivalent only for rough pilot holes, clearance holes, or material removal where a slight difference is acceptable.
2 mm Drill Bit FAQ
What are the inch and metric dimensions for 2 mm?
2 mm drill bit measures 0.0787 in and 2.00 mm.
What is the closest common equivalent to 2 mm?
5/64 inch is the closest common equivalent listed here. It measures 0.0781 in or 1.98 mm.
Can I substitute another bit for 2 mm?
Use the exact bit size for tap drilling, precision holes, dowels, and manufacturer-specified hardware. A nearby fractional, metric, numbered, or letter drill bit is usually fine only for clearance holes or rough pilot holes.