Tap Drill Size Chart

15.3 mm Drill Size

metric drill

15.3 mm 0.6024 in 15.30 mm

A 15.3 mm drill measures 0.6024 in. It taps 2 threads in this chart.

What a 15.3 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 15.3 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 2.5 83.1% 15.5 mm 77.0%
M16 x 1 53.9% 15 mm 77.0%

Other jobs for a 15.3 mm

Form-tap hole
The published roll-tap hole for M16 x 1.5. A form tap displaces metal instead of cutting it, so it needs this larger hole.

Drills either side

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

15.3 mm drill: common questions

What size is a 15.3 mm drill?
0.6024 inches, which is 15.30 mm. It is a metric drill.
What can I tap with a 15.3 mm drill?
2 threads: M18 x 2.5 at 83.1%, M16 x 1 at 53.9%.
What drill is next to a 15.3 mm?
Down: 15.1 mm at 0.5945 in. Up: 15.8 mm at 0.622 in.