General description Silverline Impact Alloy Wheel Nut Socket Set includes three chrome molybdenum sockets that are hardened, tempered, and anodised for enhanced corrosion resistance. The set features nylon sleeves and inserts that protect both wheels and nuts, making it suitable for use with impact tools. The colour-coded sockets allow for easy size selection and come in a tough storage case. Technical specifications Socket sizes: 17mm, 19mm, 21mm Drive size: 1/2"