DW1810 offers tool-free quick-release collar to prevent hole saws from locking to the mandrel * DW1803 and DW1805 offer spring-loaded collar that automatically engages drive pins * All quick change mandrels feature double set screws with a recessed combination head * All quick change mandrels have been tested through 15,000+ cycles to deliver jobsite durability * Pilot bits feature the patented DEWALT Pilot Point Tip for faster material penetration