9 mm Drill Size
metric drill
9 mm 0.3543 in 9.00 mm
A 9 mm drill is the standard tap drill for M10 x 1.
What a 9 mm drill taps
Every thread this drill cuts between 50% and 85% of thread, deepest first. Outside that band it is the wrong drill for the job, so nothing below that line is listed.
| Thread | % thread | Chart drill | Chart % |
|---|---|---|---|
| M10 x 1 chart drill | 77.0% | 9 mm | 77.0% |
| M10 x 1.25 | 61.6% | 8.8 mm | 73.9% |
| M10 x 1.5 | 51.3% | 8.5 mm | 77.0% |
| 3/8-32 | 51.0% | 11/32″ | 76.9% |
Other jobs for a 9 mm
- Hard-material tap drill
- The size to use in stainless or tool steel for M10 x 1.25, where it leaves a shallower thread than the standard drill and cuts tapping torque.
Drills either side
9 mm drill: common questions
What size is a 9 mm drill?
0.3543 inches, which is 9.00 mm. It is a metric drill.
What can I tap with a 9 mm drill?
4 threads: M10 x 1 at 77.0%, M10 x 1.25 at 61.6%, M10 x 1.5 at 51.3%, 3/8-32 at 51.0%.
Is a 9 mm drill the standard tap drill for anything?
Yes, for M10 x 1 (77.0% thread). That is the size published tap and drill charts give.
What drill is next to a 9 mm?
Down: 8.9 mm at 0.3504 in. Up: T at 0.358 in.