Tap Drill Size Chart

35/64 in Drill Size

fractional drill

35/64″ 0.5469 in 13.89 mm

A 35/64 in drill measures 0.5469 in. It taps 2 threads in this chart.

What a 35/64 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 35/64 in drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
M16 x 2 81.2% 14 mm 77.0%
5/8-11 66.1% 17/32″ 79.4%

Other jobs for a 35/64 in

Hard-material tap drill
The size to use in stainless or tool steel for 5/8-11, where it leaves a shallower thread than the standard drill and cuts tapping torque.
Form-tap hole
The published roll-tap hole for 9/16-24. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

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35/64 in drill: common questions

What size is a 35/64 in drill?
0.5469 inches, which is 13.89 mm. It is a fractional drill.
What can I tap with a 35/64 in drill?
2 threads: M16 x 2 at 81.2%, 5/8-11 at 66.1%.
What drill is next to a 35/64 in?
Down: 13.8 mm at 0.5433 in. Up: 13.9 mm at 0.5472 in.