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.6pc 1/2Sq Drive Impact Spline 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.• Sizes: M8 M10 M12 M14 M16 M18.• Supplied in storage case.• Lifetime guarantee*.• Model No. AK5608Model No: AK5608:Brand: Premier:Contents: Impact Spline Socket Bits; M8PTDSEAAK5608