Tap Drill Size Chart

9.3 mm Drill Size

metric drill

9.3 mm 0.3661 in 9.30 mm

A 9.3 mm drill is the standard tap drill for M10 x 0.75.

What a 9.3 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.

Threads a 9.3 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
7/16-14 76.9% U 74.9%
M10 x 0.75 chart drill 71.9% 9.3 mm 71.9%
M10 x 1 53.9% 9 mm 77.0%

Other jobs for a 9.3 mm

Form-tap hole
The published roll-tap hole for M10 x 1.5. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

All drill sizes → · Open this drill in the calculator →

9.3 mm drill: common questions

What size is a 9.3 mm drill?
0.3661 inches, which is 9.30 mm. It is a metric drill.
What can I tap with a 9.3 mm drill?
3 threads: 7/16-14 at 76.9%, M10 x 0.75 at 71.9%, M10 x 1 at 53.9%.
Is a 9.3 mm drill the standard tap drill for anything?
Yes, for M10 x 0.75 (71.9% thread). That is the size published tap and drill charts give.
What drill is next to a 9.3 mm?
Down: 9.2 mm at 0.3622 in. Up: U at 0.368 in.