Includes 5-pc. 1/2 in. drive impact flip sockets: 17 x 19 mm, 21 x 22 mm, 3/4 in. x 13/16 in., 7/8 in. x 15/16 in., 1 x 1-1/16 in.; 1-pc. 1/2 in. drive impact extension bar: 3 in.; Storage case Fits most sizes and styles of lug nuts and boltsideal for servicing cars, trucks, utility trailers, and more Each socket well is extra deep to provide increased engagement with lug nuts and clearance for decorative caps The outer diameter of each socket is 1 to 2 mm smaller than other TEKTON impact sockets, allowing for better access in tight lug nut wells Steep, 60-degree chamfered openings make it easy for the flip sockets to slide over lug nuts