The Dewalt DT90368-QZ hole saw arbor gives you the accuracy and durability needed for demanding drilling tasks. Crafted from hardened steel, this arbor accommodates hole saws from 32 mm to 210 mm and fits drills with a 10 mm chuck or larger. The included pilot drill bit prevents wandering and slippage when starting cuts in wood, metal, or plastic, making it ideal for installing downlights or routing conduit. Its smart design allows you to adjust or replace the pilot bit without removing the attached hole saw, keeping your workflow fast, seamless, and efficient on every job.