Quick question:
I have read the Rohm chuck should never be opened or closed by using the drill itself, rather only hand-tighten the chuck with the spindle locked. Is this true? I never had a problem with my DC927 chuck until I lent my drill to a friend and he used the drill motor to tighten the chuck onto a bit. Afterwards the chuck would lose it's grip if I tried to free a stuck bit in reverse. Never had that issue prior. Now I have bought a 700 Jacobs chuck to replace the old Rohm, and I won't lend out my $300 drill again.
Thanks,
Jeff