Aluminum bars of 90 diameter and 20 length, how can they be clamped and not damaged, and can not be marked with clips?. CNC lathe。
Car soft claw, the arc is greater than 90
can also make a similar clamping straight shank milling cutter that closed tube, aluminum rods steel sleeve, then three or four jaw chuck clamping claw on the line.
Make a slightly larger aperture steel sleeve 90, the wall thickness of 5mm (you can test an ideal thickness), broken;
