Tap Drill Size Chart

17.6 mm Drill Size

metric drill

17.6 mm 0.6929 in 17.60 mm

A 17.6 mm drill measures 0.6929 in. It taps 2 threads in this chart.

What a 17.6 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 17.6 mm 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 73.9% 17.5 mm 77.0%
3/4-16 70.3% 11/16″ 77.0%

Other jobs for a 17.6 mm

Form-tap hole
The published roll-tap hole for M18 x 1. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

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17.6 mm drill: common questions

What size is a 17.6 mm drill?
0.6929 inches, which is 17.60 mm. It is a metric drill.
What can I tap with a 17.6 mm drill?
2 threads: M20 x 2.5 at 73.9%, 3/4-16 at 70.3%.
What drill is next to a 17.6 mm?
Down: 17.5 mm at 0.689 in. Up: 17.7 mm at 0.6969 in.