Tap Drill Size Chart

11.1 mm Drill Size

metric drill

11.1 mm 0.437 in 11.10 mm

A 11.1 mm drill measures 0.437 in. It taps 3 threads in this chart.

What a 11.1 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 11.1 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 69.3% 11 mm 77.0%
1/2-13 63.0% 27/64″ 78.2%
M12 x 1.25 55.4% 10.8 mm 73.9%

Drills either side

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

11.1 mm drill: common questions

What size is a 11.1 mm drill?
0.437 inches, which is 11.10 mm. It is a metric drill.
What can I tap with a 11.1 mm drill?
3 threads: M12 x 1 at 69.3%, 1/2-13 at 63.0%, M12 x 1.25 at 55.4%.
What drill is next to a 11.1 mm?
Down: 11 mm at 0.4331 in. Up: 7/16 in at 0.4375 in.