i have a dewalt dc720 how do i remove the chuck as the centre screw seems worn

billy, April 2011

Remove the chuck screw (t-20 inside the chuck). Note that it is reverse thread. Then set the drill to setting 2 and drill speed (to best lock the chuck). Then lock a large (1/2") Allen wrench in the chuck. Hold the drill tightly on a flat surface, and whack the Allen wrench counter clockwise. It should break loose and you can then spin it off by hand.

Alan, August 2013

drill out old screw then get old part of screw in a vice and turn it anti clockwise .

graham, April 2011