13.9 mm Drill Size

metric drill

13.9 mm 0.5472 in 13.90 mm

A 13.9 mm drill measures 0.5472 in. It taps 2 threads in this chart.

What a 13.9 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.

Threads a 13.9 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M16 x 2	80.8%	14 mm	77.0%
5/8-11	65.9%	17/32″	79.4%

Drills either side

35/64″ 0.5469 in · 13.89 mm Next size down
14 mm 0.5512 in · 14 mm Next size up

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

13.9 mm drill: common questions

What size is a 13.9 mm drill?

0.5472 inches, which is 13.90 mm. It is a metric drill.

What can I tap with a 13.9 mm drill?

2 threads: M16 x 2 at 80.8%, 5/8-11 at 65.9%.

What drill is next to a 13.9 mm?

Down: 35/64 in at 0.5469 in. Up: 14 mm at 0.5512 in.