18.7 mm Drill Size

metric drill

18.7 mm 0.7362 in 18.70 mm

A 18.7 mm drill measures 0.7362 in. It taps 2 threads in this chart.

What a 18.7 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 18.7 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M20 x 1.5	66.7%	18.5 mm	77.0%
M20 x 2	50.0%	18 mm	77.0%

Drills either side

47/64″ 0.7344 in · 18.65 mm Next size down
18.9 mm 0.7441 in · 18.9 mm Next size up

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

18.7 mm drill: common questions

What size is a 18.7 mm drill?

0.7362 inches, which is 18.70 mm. It is a metric drill.

What can I tap with a 18.7 mm drill?

2 threads: M20 x 1.5 at 66.7%, M20 x 2 at 50.0%.

What drill is next to a 18.7 mm?

Down: 47/64 in at 0.7344 in. Up: 18.9 mm at 0.7441 in.