Features:Chrome Molybdenum sockets, hardened, tempered and anodised for corrosion resistance.Suitable for use with impact tools.Each socket is sleeved and has an insert to prevent damage to alloy wheels and nuts.Colour-coded sockets for easy size selection.Comprises standard 17, 19 and 21mm sockets.Supplied in storage case.IMPORTANT INFORMATIONAlloy wheel impact sockets have an ultra-thin walled design permitting a limited torque range.They are suitable only for wheel nuts and exempt from lifetime warranty.Specifications:Model No: SX031Drive: 1/2"SqType: DeepSizes: 17, 19, 21mmHeight: 134Width: 150Length: 46.