I managed to break the chuck key tonight while using it to unscrew the 4-jaw
chuck from the mandrel of my ML7, prior to fitting the 3-jaw chuck. Luckily
I could extract the broken piece, and grind four new flats on the key, but I
wonder what the recommended method is for loosening the chuck from its
thread? The only thing that occurs to me is to use a bar across the jaws of
the chuck but I worry about damaging the jaws.
Cliff Coggin
Kent
UK
- posted
18 years ago