8.8 mm Drill Size
metric drill
8.8 mm 0.3465 in 8.80 mm
A 8.8 mm drill is the standard tap drill for M10 x 1.25.
What a 8.8 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 1.25 chart drill | 73.9% | 8.8 mm | 73.9% |
| 3/8-32 | 70.2% | 11/32″ | 76.9% |
| M10 x 1.5 | 61.6% | 8.5 mm | 77.0% |
| 3/8-24 | 52.7% | Q | 79.4% |
Other jobs for a 8.8 mm
- Hard-material tap drill
- The size to use in stainless or tool steel for M10 x 1.5, where it leaves a shallower thread than the standard drill and cuts tapping torque.
Drills either side
8.8 mm drill: common questions
What size is a 8.8 mm drill?
0.3465 inches, which is 8.80 mm. It is a metric drill.
What can I tap with a 8.8 mm drill?
4 threads: M10 x 1.25 at 73.9%, 3/8-32 at 70.2%, M10 x 1.5 at 61.6%, 3/8-24 at 52.7%.
Is a 8.8 mm drill the standard tap drill for anything?
Yes, for M10 x 1.25 (73.9% thread). That is the size published tap and drill charts give.
What drill is next to a 8.8 mm?
Down: 11/32 in at 0.3438 in. Up: S at 0.348 in.