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#25 drill bit size
#25 drill = .1495 in = 3.80 mm. Closest metric drill: 3.8 mm.
Taps that use a #25 drill
- #10-24 UNC: about 75% thread
Nearby drill sizes
| Drill | Type | Inch | mm | Difference |
|---|---|---|---|---|
| #28 | number | .1405 in | 3.569 | -9.0 thou |
| 9/64 | fraction | .1406 in | 3.572 | -8.9 thou |
| #27 | number | .1440 in | 3.658 | -5.5 thou |
| #26 | number | .1470 in | 3.734 | -2.5 thou |
| #25 | number | .1495 in | 3.797 | 0.0 thou |
| #24 | number | .1520 in | 3.861 | 2.5 thou |
| #23 | number | .1540 in | 3.912 | 4.5 thou |
| 5/32 | fraction | .1563 in | 3.969 | 6.8 thou |
| #22 | number | .1570 in | 3.988 | 7.5 thou |
1 thou = 0.001 in = 0.0254 mm. Drills a few thou apart are usually interchangeable for clearance holes, but not for tap drills or reamer pilots.