DEWALT Tough Grip 52-Piece Steel Hex Shank Screwdriver Bit SetOptimized for exact fastener fitments to reduce cam out Full hex design increases bit tip strength Heat treat maximizes torque Manufactured by DEWALT Features Series Name N A Sub Brand Tough Grip Bit Size Set Bit Length Set Head Type Set Shank Size 1 4 in Shank Type Hex Double Ended No Coating Uncoated steel Case Type Hard Package Quantity 52 Set Individual Set Material Steel Warranty None Brand Model Compatibility Universal CA Residents: Prop 65