The OEMTOOLS Telescoping Lug Wrench, No. 20564, extends to 21" for increased leverage. This set features two 1/2" drive double-ended sockets that will fit the SAE and Metric lug nuts standard on most passenger vehicles. The extension collapses to 14" for easy transport and storage. The double-ended socket sizes are 17mm x 21mm and 21mm x 22mm.