- Joined
- Jul 2, 2014
- Messages
- 7,594
In both the coarse and fine "threads", the lead looks like it is many times larger than the feed, like multi start threads. It is interesting that it is not parallel to the feed, but does change lead angle with the feed.In that picture above, it just looks like a machined finish with a sharp tool to me. Try the setting on E and 8, also whats the radius on the insert? The tool also looks high to me, but that might just be the camera angle.