"RKurtz" wrote in message
...
Nice to have when milling round stuff (cnc or rotary table) and the only
clamping is a center bolt. And no, I don't have any.

Why not machine a left-handed clamping bolt ?

Ron

Nothing wrong with that idea aside from the fact that most tool boxes have
few, if any, left hand taps. Michael's reply was right on the money.
Another option is to use the right hand thread and get down VERY hard with
the screw so you overcome the cutting force. That can be risky.

Harold