M10 Tapped Hole Drill Size — 8.5 mm

To tap an M10 thread (pitch 1.5 mm), drill a 8.5 mm hole for standard 6H tolerance. Use 8.7 mm for a looser 7H fit.

Tolerance class	Drill diameter	Pitch	Thread depth
6H (standard)	8.5 mm	1.5 mm	12–16 mm
7H (loose)	8.7 mm	1.5 mm	12–16 mm
4H (tight)	8.3 mm	1.5 mm	12–16 mm

Fine pitch M10×1.25 variant available in Handbook Locksmith app.

FAQ

8.5 mm drill for standard M10 thread (6H, pitch 1.5 mm).

Свердло 8,5 мм для різьби М10 з кроком 1,5 мм (допуск 6H).

Отверстие 8,5 мм для М10 с шагом 1,5 мм (допуск 6H).

Full M10 thread data in the app
Profile viewer, tolerance calculator, 28 thread types