19 Hex Dr. Wheel Nut Adaptor Socket 19mm Extra Thin walled Length 52mm Color coded ProtectorTHIN WALL The advantages of Thin walled design are : light weight for easier handling and flexibility to access narrow work space. Standard sockets are designed according to ISO DIN ANSI norms. However, wheel nut sockets are dedicated sockets for tightening and loosening wheel nut bolt. Therefore, they are designed according to the purpose of use. Ko ken Adapter Socket for low profile wheel nuts Adaptor Socket Extra Thin walled Color coded by size