Tap Drill Size Chart

17.2 mm Drill Size

metric drill

17.2 mm 0.6772 in 17.20 mm

A 17.2 mm drill measures 0.6772 in. It taps 2 threads in this chart.

What a 17.2 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 17.2 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 61.6% 17 mm 77.0%
3/4-10 56.0% 21/32″ 72.2%

Other jobs for a 17.2 mm

Hard-material tap drill
The size to use in stainless or tool steel for M18 x 1, where it leaves a shallower thread than the standard drill and cuts tapping torque.

Drills either side

All drill sizes → · Open this drill in the calculator →

17.2 mm drill: common questions

What size is a 17.2 mm drill?
0.6772 inches, which is 17.20 mm. It is a metric drill.
What can I tap with a 17.2 mm drill?
2 threads: M18 x 1 at 61.6%, 3/4-10 at 56.0%.
What drill is next to a 17.2 mm?
Down: 17.1 mm at 0.6732 in. Up: 17.3 mm at 0.6811 in.