The Bahco BWSS12P5 1/2in Drive Impact Wheel Socket Set contains a selection of the most popular sizes. The long length of these sockets enables easy access. Made from high-performance alloy steel with plastic protection on socket walls to ensure protection of the rims and plastic protection inside the socket to ensure protection of wheel nuts. They have a black phosphate finish with colour coded jackets for easy identification. Sizes: 17 19 21 22 and 24mmAdditional Information:• Metric/Imperial: Metric• Set Type: 1/2in