Tap Drill Size Chart

3/64 in Drill Size

fractional drill

3/64″ 0.0469 in 1.19 mm

A 3/64 in drill is the standard tap drill for #0-80.

What a 3/64 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 3/64 in drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
#0-80 chart drill 80.7% 3/64″ 80.7%
M1.4 x 0.3 53.6% 1.1 mm 77.0%

Drills either side

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3/64 in drill: common questions

What size is a 3/64 in drill?
0.0469 inches, which is 1.19 mm. It is a fractional drill.
What can I tap with a 3/64 in drill?
2 threads: #0-80 at 80.7%, M1.4 x 0.3 at 53.6%.
Is a 3/64 in drill the standard tap drill for anything?
Yes, for #0-80 (80.7% thread). That is the size published tap and drill charts give.
What drill is next to a 3/64 in?
Down: #56 at 0.0465 in. Up: 1.2 mm at 0.0472 in.