Tap Drill Size Chart

#63 Drill Size

number drill

#63 0.037 in 0.94 mm

A #63 drill measures 0.037 in. It taps 1 thread in this chart.

What a #63 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 #63 drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
M1.2 x 0.25 80.1% 0.95 mm 77.0%

Drills either side

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#63 drill: common questions

What size is a #63 drill?
0.037 inches, which is 0.94 mm. It is a number drill.
What can I tap with a #63 drill?
1 thread: M1.2 x 0.25 at 80.1%.
What drill is next to a #63?
Down: #67 at 0.032 in. Up: #62 at 0.038 in.