crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

A lot of these had a button which locks the shaft in place allowing you to put pliers on the collet and turn it.  See if yours has such a lock.

crwdns2915684:0crwdne2915684:0:

open