Irwin 1837539 Impact Nutsetter - Lobular, Magnetic 3/8" X 1-7/8" OAL - 1-Piece Carded Standard Features: Built for maximum durability, performance, and long life with impact tools Designed to drive the fastener from the side, rather than forcing the corners to turn, maintaining the true shape of the fastener and dramatically reducing breakage and damage from stripping Lobular design Available with or without powerful rare earth magnets that hold fasteners securely in place Black oxide finish 1-Piece Carded Magnetic Nutsetter Hex Drive: 3/8" Socket Body Dia.: 9/16" Shank Diameter: 1/4" Overall Length: 1-7/8" Pack Quantity: 5