[SCzEngrgGroup]

If the holder is pulling out of the collet, then you're not tightening the drawbar enough. The outside taper of the collet should be very lightly coated with anti-sieze. The collet bore, and the TTS shank should be completely clean and dry. Drawbar should be tightened to 15-25 ft-lbs.

Regards,
Ray L.

[Spinnetti]

If the holder is pulling out of the collet, then you're not tightening the drawbar enough. The outside taper of the collet should be very lightly coated with anti-sieze. The collet bore, and the TTS shank should be completely clean and dry. Drawbar should be tightened to 15-25 ft-lbs.

Regards,
Ray L.

I followed the instructions when I set up the PDB, and then I tightened it some more after pull out, but still not liking it. I've taken much heavier cuts on my old mill drill that I did my own cnc conversion on without any issues like that. Hmm.