In article ,
jakdedert wrote:
The advice from the Makita service center was to chuck up a long allen
wrench with the long side 'out' then set the drill on a bench with the
chuck over the edge and (here's the good part, I know you've been
wondering what this has to do with your washer) *whack the allen wrench
with a hammer*! It worked great. One whack broke the threads free, and
the chuck spun off easily.

In the days when you regularly did this to use your circular saw
attachment etc, B&D said to insert the chuck key and whack that with a
hammer.

Be careful with a reversing screw driving drill, though, these have
usually a left hand thread locking screw which needs to be removed first.

--
*"I am " is reportedly the shortest sentence in the English language. *

Dave Plowman London SW 12
RIP Acorn