Chrome Molybdenum sockets, hardened, tempered and anodised for corrosion resistance. Suitable for use with impact tools. Each 6-point socket is sleeved and has an insert to prevent damage to alloy wheels and nuts. Colour-coded socket assists ease of size selection. Comprises deep or long reach 17, 19 and 21mm sockets. Supplied in storage case. Chrome Molybdenum sockets, hardened, tempered and anodised for corrosion resistance. Suitable for use with impact tools. Each 6-point socket is sleeved and has an insert to prevent damage to alloy wheels and nuts. Colour-coded sockets for easy size selection. Set comprises long reach 17, 19 and 21mm 1/2""Sq drive sockets, plus spare PE sleeves. Supplied in storage case. IMPORTANT INFORMATION Alloy 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 guarantee.