• Drop-forged, heat-treated impact-duty chrome molybdenum steel.
• Oil-quenched black phosphate finish for corrosion resistance and durability.
• Radius-corner driver design applies greater torque and prevent roundoff damage.
• Especially designed for the speed and torque of impact tools.
• Deep socket design services long-length fasteners or hard-to-reach fasteners.
• Contents: 
• 8 Pcs - 3/8" Dr. 6-point Shallow Impact Sockets:
• 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
• 8 Pcs - 3/8" Dr. 6-point Deep Impact Sockets:
• 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
• 13 Pcs - 3/8" Dr. 6-point Shallow Impact Sockets:
• 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21mm
• 13 Pcs - 3/8" Dr. 6-point Deep Impact Sockets:
• 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21mm
• 2 Pcs - 3/8" Impact Extension Bar: 3", 6"
• 1 Pcs - 3/8" Impact Universal Joint.
• 2 Pcs - Reducer: 1/2" (F) x 3/8" (M); Adapter: 3/8" (F) x 1/2" (M)
• Sturdy and strong blow molded case for organized storage.