V Drill Size

letter drill

V 0.377 in 9.58 mm

A V drill measures 0.377 in. It taps 1 thread in this chart.

What a V 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 V drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
7/16-14	65.2%	U	74.9%

Drills either side

9.5 mm 0.374 in · 9.5 mm Next size down
9.8 mm 0.3858 in · 9.8 mm Next size up

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

V drill: common questions

What size is a V drill?

0.377 inches, which is 9.58 mm. It is a letter drill.

What can I tap with a V drill?

1 thread: 7/16-14 at 65.2%.

What drill is next to a V?

Down: 9.5 mm at 0.374 in. Up: 9.8 mm at 0.3858 in.