10.1 mm Drill Size

metric drill

10.1 mm 0.3976 in 10.10 mm

A 10.1 mm drill measures 0.3976 in. It taps 2 threads in this chart.

What a 10.1 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 10.1 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M12 x 1.75	83.6%	10.2 mm	79.2%
7/16-20	61.4%	25/64″	72.2%

Drills either side

X 0.397 in · 10.08 mm Next size down
10.2 mm 0.4016 in · 10.2 mm Next size up

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

10.1 mm drill: common questions

What size is a 10.1 mm drill?

0.3976 inches, which is 10.10 mm. It is a metric drill.

What can I tap with a 10.1 mm drill?

2 threads: M12 x 1.75 at 83.6%, 7/16-20 at 61.4%.

What drill is next to a 10.1 mm?

Down: X at 0.397 in. Up: 10.2 mm at 0.4016 in.