M10 Tap Drill Size

Use a 8.5 mm drill for a M10 x 1.5 tap — .3346" (8.50 mm).

Rule of thumb for metric: drill = major diameter - pitch. For M10 that lands on 8.5 mm.

Nearby taps

Tap	Drill	Decimal
M8 x 1.25	6.8	.2677
M12 x 1.75	10.2	.4016

Printable PDF version - Tap Drill Chart
Clean letter-size sheet for the toolbox or shop wall. Instant download, $3.49.