12.6 mm Drill Size

metric drill

12.6 mm 0.4961 in 12.60 mm

A 12.6 mm drill measures 0.4961 in. It taps 3 threads in this chart.

What a 12.6 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 12.6 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M14 x 1.5	71.9%	12.5 mm	77.0%
9/16-12	61.3%	31/64″	72.1%
M14 x 2	53.9%	12 mm	77.0%

Drills either side

12.5 mm 0.4921 in · 12.5 mm Next size down
1/2″ 0.500 in · 12.7 mm Next size up

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

12.6 mm drill: common questions

What size is a 12.6 mm drill?

0.4961 inches, which is 12.60 mm. It is a metric drill.

What can I tap with a 12.6 mm drill?

3 threads: M14 x 1.5 at 71.9%, 9/16-12 at 61.3%, M14 x 2 at 53.9%.

What drill is next to a 12.6 mm?

Down: 12.5 mm at 0.4921 in. Up: 1/2 in at 0.500 in.