7.2 mm Drill Size

metric drill

7.2 mm 0.2835 in 7.20 mm

A 7.2 mm drill measures 0.2835 in. It taps 4 threads in this chart.

What a 7.2 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 7.2 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M8 x 0.75	82.1%	7.3 mm	71.9%
5/16-32	71.4%	9/32″	77.1%
M8 x 1	61.6%	7 mm	77.0%
5/16-24	53.6%	I	74.8%

Other jobs for a 7.2 mm

Hard-material tap drill: The size to use in stainless or tool steel for M8 x 1, where it leaves a shallower thread than the standard drill and cuts tapping torque.

Drills either side

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

7.2 mm drill: common questions

What size is a 7.2 mm drill?

0.2835 inches, which is 7.20 mm. It is a metric drill.

What can I tap with a 7.2 mm drill?

4 threads: M8 x 0.75 at 82.1%, 5/16-32 at 71.4%, M8 x 1 at 61.6%, 5/16-24 at 53.6%.

What drill is next to a 7.2 mm?

Down: 9/32 in at 0.2812 in. Up: 7.3 mm at 0.2874 in.