5 mm Drill Size

metric drill

5 mm 0.1969 in 5.00 mm

A 5 mm drill is the standard tap drill for M6 x 1.

What a 5 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 5 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
1/4-20	81.8%	#7	75.4%
M6 x 1 chart drill	77.0%	5 mm	77.0%

Drills either side

#9 0.196 in · 4.98 mm Next size down
#8 0.199 in · 5.06 mm Next size up

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

5 mm drill: common questions

What size is a 5 mm drill?

0.1969 inches, which is 5.00 mm. It is a metric drill.

What can I tap with a 5 mm drill?

2 threads: 1/4-20 at 81.8%, M6 x 1 at 77.0%.

Is a 5 mm drill the standard tap drill for anything?

Yes, for M6 x 1 (77.0% thread). That is the size published tap and drill charts give.

What drill is next to a 5 mm?

Down: #9 at 0.196 in. Up: #8 at 0.199 in.