Sunex 3500 3/8-Inch Drive Impact Extension Set, 4-Piece

Cr-mo steel: provides the strength and flexibility to handle high torque impact tools. | Radius corner design: reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners. | Steel ball retainer: designed on male end. | Dual size markings: laser etched and roll stamped markings to ensure permanent identification.The Sunex 3500 ?” drive Impact Extension Set includes sizes 3”, 5”, 10”, and 15”. each extension has been forged from high grade CR-MO steel, Made with a steel ball retainer, and marked by both laser etching and roll stamping to ensure permanent identification. All of this ensures our extensions’ professional-level performance-convenientlyy in a storage tray. Meets ANSI standards.