Product: Sunex 3342, 3/8 Inch Drive Master Impact Socket Set, 42-Piece, SAE/Metric, 5/16 Inch - 3/4 Inch, 8mm - 19mm, Standard/Deep, Cr-Mo Alloy Steel, Radius Corner Design, Chamfered Opening, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards, Incl
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.
Chamfered Opening: quickly aligns fastener to socket.
Dual size markings: laser etched and roll stamped markings to ensure permanent socket identification.
Heavy duty storage case: convenient impact socket transport and storage.

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