#machining #lathe #tools

Today we are machining an ER32 collet.

This tool will help press fitting thin long rods in a shop press. The collet chuck will be fitted to the end of the piston and there's a jig on the press plate to keep things repeatedly in place (and square). The chuck has no through hole as the the bottom of the ER taper will be pushing the rods down, not the collet.

00:00 Raw stock
00:37 Turning and polishing
04:29 Setting up the 4 jaw chuck
06:00 Changing gears for threading
06:59 Single point threading M40x1.5
10:18 Cutting the ER32 taper
14:02 Tolerance check

Tolerance check was done with a bar turned in this lathe, not a ground bar as I don't have any.

Lathe: HBM 250x550 Profi Vario