11.8 mm Drill Size

metric drill

11.8 mm 0.4646 in 11.80 mm

A 11.8 mm drill measures 0.4646 in. It taps 3 threads in this chart.

What a 11.8 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 11.8 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 2	84.7%	12 mm	77.0%
1/2-28	76.3%	15/32″	67.2%
1/2-20	54.5%	29/64″	72.2%

Drills either side

11.7 mm 0.4606 in · 11.7 mm Next size down
11.9 mm 0.4685 in · 11.9 mm Next size up

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

11.8 mm drill: common questions

What size is a 11.8 mm drill?

0.4646 inches, which is 11.80 mm. It is a metric drill.

What can I tap with a 11.8 mm drill?

3 threads: M14 x 2 at 84.7%, 1/2-28 at 76.3%, 1/2-20 at 54.5%.

What drill is next to a 11.8 mm?

Down: 11.7 mm at 0.4606 in. Up: 11.9 mm at 0.4685 in.