You need to use the brake while tightening the collet. Make sure the threads work together with zero effort, and there is no oil in the taper or on the collet.I did my best to feel all around inside and could find no key/pin or evidence of one previously having lived in there.
A friend pointed me to many threads with people saying they prefer R8 with no key. Is there a trick to getting the drawbar to tighten and not spin the collet/spindle?
My enco knee mill has what i am fairly sure is an R8 spindle however it has no keyway nor can I find any other means of preventing the drawbar from rotating the collet.
Am I missing something? R8 collets fit snuggly. View attachment 345873
View attachment 345874