1/2" Drive Spline Protective Wheel Socket Set, No. MST903.
Photo credit: MONSTER
Monster's 1/2" drive spline protective wheel socket set, No. MST903, features a thin wall for aluminum wheel use and comes with three pieces. It has a tough chrome moly structure finished in black chrome and a nylon sleeve. The spline design can be used on six different fastener types. These sockets can work on locking aftermarket lug nuts! The socket sizes include 17mm, 19mm and 21mm, and come packaged in a blow molded box.