Tap Drill Size Chart

16.2 mm Drill Size

metric drill

16.2 mm 0.6378 in 16.20 mm

A 16.2 mm drill measures 0.6378 in. It taps 2 threads in this chart.

What a 16.2 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 16.2 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 2 69.3% 16 mm 77.0%
M18 x 2.5 55.4% 15.5 mm 77.0%

Drills either side

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

16.2 mm drill: common questions

What size is a 16.2 mm drill?
0.6378 inches, which is 16.20 mm. It is a metric drill.
What can I tap with a 16.2 mm drill?
2 threads: M18 x 2 at 69.3%, M18 x 2.5 at 55.4%.
What drill is next to a 16.2 mm?
Down: 16.1 mm at 0.6339 in. Up: 41/64 in at 0.6406 in.