Chrome Molybdenum steel impact sockets with 1/2Sq drive. Phosphate finish for added corrosion resistance. Suitable for use with any impact tool. Supplied in storage case.8pc 1/2Sq Drive Hex Impact Socket Bit Set• Chrome Molybdenum steel impact sockets with 1/2Sq drive.• Phosphate finish for added corrosion resistance.• Suitable for use with any impact tool.• Contents: 5 6 8 10 12 14 17 19mm.• Length: 78mm.• Supplied in storage case.• Lifetime guarantee*.• Model No. AK5601Model No: AK5601:Brand: Premier:Contents: 5PTDSEAAK5601