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T drill bit size
T drill = .3580 in = 9.09 mm. Closest metric drill: 9.1 mm.
Nearby drill sizes
| Drill | Type | Inch | mm | Difference |
|---|---|---|---|---|
| Q | letter | .3320 in | 8.433 | -26.0 thou |
| R | letter | .3390 in | 8.611 | -19.0 thou |
| 11/32 | fraction | .3438 in | 8.731 | -14.2 thou |
| S | letter | .3480 in | 8.839 | -10.0 thou |
| T | letter | .3580 in | 9.093 | 0.0 thou |
| 23/64 | fraction | .3594 in | 9.128 | 1.4 thou |
| U | letter | .3680 in | 9.347 | 10.0 thou |
| 3/8 | fraction | .3750 in | 9.525 | 17.0 thou |
| V | letter | .3770 in | 9.576 | 19.0 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.