DEWALT Drill Chuck Key: 1/2 in Key Size, 1/4 in Pilot Size, Steel

DeWalt Industrial Tool Company is an American worldwide manufacturer of power tools and hand tools for the construction, manufacturing and woodworking industries. DeWalt is a registered trademark of Black & Decker Inc., a subsidiary of Stanley Black & Decker Shock Resistant Tool Made From Advanced Hardening Steel 1/4" Pilot Shank Advanced hardening process