- Joined
- Apr 23, 2013
- Messages
- 1,079
I use Rovi Id collets . But I buy them used on eBay. And I have been making expanding collets of my own design for over 50 years. And I make all my own bolts to expand the collets out of Allen head screws. I just cut the angle to expand them on the screws . And I cut the collets shorter and recut the angle to expand them.