M3 Tap Drill Size
Use a 2.5 mm drill for a M3 x 0.5 tap — .0984" (2.50 mm).
Rule of thumb for metric: drill = major diameter - pitch. For M3 that lands on 2.5 mm.
Nearby taps
| Tap | Drill | Decimal |
|---|---|---|
| M4 x 0.7 | 3.3 | .1299 |
Printable PDF version - Tap Drill Chart
Clean letter-size sheet for the toolbox or shop wall. Instant download, $3.49.
Clean letter-size sheet for the toolbox or shop wall. Instant download, $3.49.