Ideal for high torque applications, DEWALT Impact Ready Nut drivers feature innovative recessed corners that can drive flats while minimizing shavings. An industrial strength magnet maximizes fastener retention. Withstands up to 2, 000 in lb. of torque. Made of shock resistant tool steel for maximum durability. Hardened core for extra strength and reduced breakage and stripping. Heat treated to resist breakage and wear. | DEWALT Magnetic Nut Driver Set 4 Piece DW2229