I just got a 1.5 inch 8tpi insert for my stronghold chuck and i cannot remove the existing one. There are two alan screws that i removed, but in the other two holes, there are no screws whatsoever (and no internal threading). i dont think the insert twists off as my new insert has no external threading. does it pry off? i tried that too. anyone who knows your help is appriciated!
-Jon
-Jon