"lbbss" wrote in message
...
I have a 4" angle grinder that came with a 1/8" open end wrench to
unlock the cutting disk. The regular open end wrench is too thick
(1/4") to fit to my angle grinder. Any ideas what other tool I could
use to unlock it? Any ideas? thanks.

Go to a bicycle store. Or grind a cheap wrench, or cut a slot in a piece of
1/8" stock.