Question #6915   Submitted by Answiki on 10/14/2022 at 07:47:05 AM UTC

What diameter should I pre-drill for an M11 tap?

Answer   Submitted by Answiki on 10/14/2022 at 07:47:45 AM UTC

The pre-drilled diameter of an M11 x 1.5 thread is 9.5 mm.


The pre-drilled diameter for tapping is given by the drilling diameter minus the pitch. For a standard M11 x 1.5 tap, you need to drill to 11 - 1.5 = 9.5 mm.

Log in or sign up to update this answer Login Signup
2 events in history
Answer by Answiki on 10/14/2022 at 07:47:45 AM

The pre-drilled diameter of an M11 x 1.5 thread is 9.5 mm.


The pre-drilled diameter for tapping is given by the drilling diameter minus the pitch. For a standard M11 x 1.5 tap, you need to drill to 11 - 1.5 = 9.5 mm.

Question by Answiki 10/14/2022 at 07:47:05 AM
What diameter should I pre-drill for an M11 tap?
# ID Query URL Count
Icons proudly provided by Friconix.