Tap Drill Size Chart

17 mm Drill Size

metric drill

17 mm 0.6693 in 17.00 mm

A 17 mm drill is the standard tap drill for M18 x 1.

What a 17 mm 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 17 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
M18 x 1 chart drill 77.0% 17 mm 77.0%
3/4-10 62.1% 21/32″ 72.2%
M18 x 1.5 51.3% 16.5 mm 77.0%

Drills either side

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17 mm drill: common questions

What size is a 17 mm drill?
0.6693 inches, which is 17.00 mm. It is a metric drill.
What can I tap with a 17 mm drill?
3 threads: M18 x 1 at 77.0%, 3/4-10 at 62.1%, M18 x 1.5 at 51.3%.
Is a 17 mm drill the standard tap drill for anything?
Yes, for M18 x 1 (77.0% thread). That is the size published tap and drill charts give.
What drill is next to a 17 mm?
Down: 16.9 mm at 0.6654 in. Up: 43/64 in at 0.6719 in.