#5 Drill Size

number drill

#5 0.2055 in 5.22 mm

A #5 drill measures 0.2055 in. It taps 2 threads in this chart.

What a #5 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 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	68.5%	#7	75.4%
M6 x 1	60.0%	5 mm	77.0%

Other jobs for a #5

Clearance hole: The through hole a bolt passes in, not a tapped hole: close fit for #10-24, close fit for #10-32. See the clearance hole chart.

Drills either side

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

#5 drill: common questions

What size is a #5 drill?

0.2055 inches, which is 5.22 mm. It is a number drill.

What can I tap with a #5 drill?

2 threads: 1/4-20 at 68.5%, M6 x 1 at 60.0%.

Is a #5 drill used for clearance holes?

Yes: close fit for #10-24, close fit for #10-32. A clearance hole is not tapped; the bolt passes through it.

What drill is next to a #5?

Down: 5.2 mm at 0.2047 in. Up: 5.3 mm at 0.2087 in.