The Ko-ken 3-pc 1/2" Square Drive Double-Ended Socket for Damaged Wheel Nuts/Bolts, No. 14219M, is a socket set designed for removing damaged or swollen lug nuts and bolts. The set includes an extension bar and two double-sided sockets: one with 18.5mm and 19.5mm sizes and one with 20.5mm and 21.5mm sizes. The thin-walled sockets are ideal for tight spaces, and both sockets feature removable plastic covers that protect the wheel and extend the tool's longevity.