Product: Sunex 1848, 1/4 Inch Drive Master Impact Socket Set, 48-Piece, SAE/Metric, 3/16 Inch - 9/16 Inch, 4mm - 15mm, Standard/Deep, Cr-Mo Alloy Steel, Radius Corner Design, Heavy Duty Storage Case
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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