"MrCheerful" wrote ...

As others have said, it is screwed on with a reverse thread screw.

I normally put an allen key in the chuck, tighten up, grab hold, put
drill in reverse, lowest gear & squeeze trigger. If it was really
stuck, or a mains drill (prolly take my hand off!) I'd clamp the
allen key in a vice.

All depends whether your drill's got enough torque to free the
chuck.

No, chucks have a conventional thread. The locking screw is left hand
thread.

MrCheerful



doh! you're right, sorry.

mine doesnt have a locking screw (spindle has a hex socket to accept driver
bits, so a screw would be a PITA), and whilst going through the mental
motions I somehow got things twisted around....

cheers
Richard

--
Richard Sampson

email me at
richard at olifant d-ot co do-t uk