- Joined
- Nov 27, 2012
- Messages
- 7,867
Erik, what you are using there is not a threading tool, it's a turning tool. That insert is a CCMT that is a diamond shape which has an 80° included angle for the tip. Look at your fishtail pic, you can clearly see the gaps.
A triangle shape like TCMT has 60° included angle tips but they are still turning tools & the nose radius is tool large for threading. You can get away with a triangle insert for threading only if for a large diameter very coarse pitch thread.
A triangle shape like TCMT has 60° included angle tips but they are still turning tools & the nose radius is tool large for threading. You can get away with a triangle insert for threading only if for a large diameter very coarse pitch thread.