11/16 in Drill Size

fractional drill

11/16″ 0.6875 in 17.46 mm

A 11/16 in drill is the standard tap drill for 3/4-16.

What a 11/16 in 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 11/16 in drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread	% thread	Chart drill	Chart %
M20 x 2.5	78.2%	17.5 mm	77.0%
3/4-16 chart drill	77.0%	11/16″	77.0%

Other jobs for a 11/16 in

Clearance hole: The through hole a bolt passes in, not a tapped hole: normal fit for 5/8-11, normal fit for 5/8-18, normal fit for 5/8-24. See the clearance hole chart.

Drills either side

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11/16 in drill: common questions

What size is a 11/16 in drill?

0.6875 inches, which is 17.46 mm. It is a fractional drill.

What can I tap with a 11/16 in drill?

2 threads: M20 x 2.5 at 78.2%, 3/4-16 at 77.0%.

Is a 11/16 in drill the standard tap drill for anything?

Yes, for 3/4-16 (77.0% thread). That is the size published tap and drill charts give.

Is a 11/16 in drill used for clearance holes?

Yes: normal fit for 5/8-11, normal fit for 5/8-18, normal fit for 5/8-24. A clearance hole is not tapped; the bolt passes through it.

What drill is next to a 11/16 in?

Down: 17.4 mm at 0.685 in. Up: 17.5 mm at 0.689 in.