- Joined
- Dec 25, 2011
- Messages
- 591
I need to tap 4 holes 2 1/4 inches deep to 3/4x10 in some 1018 steel.
Would a 50% thread work okay or should I shoot for 60%. Don't think I can tap a 75% thread---too much torque required. Looking at various charts there doesn't some to be much torque difference required in 50 to 60, but a lot at 75%
I am using a HSS tap(new)
I have never tapped this large of hole this deep and looking for real life experience.
Would a 50% thread work okay or should I shoot for 60%. Don't think I can tap a 75% thread---too much torque required. Looking at various charts there doesn't some to be much torque difference required in 50 to 60, but a lot at 75%
I am using a HSS tap(new)
I have never tapped this large of hole this deep and looking for real life experience.