Product: Sunex 3500 3/8-Inch Drive Impact Extension Set, 4-Piece
Brand: Sunex Tools
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.
Storage tray: convenient transport and storage.

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