Neiko 02282B Drive Thin Wall Flip Impact Socket Set (5 Piece), 1/2", Chrome Moly Steel Unique duo flip socket design allows for quick and convenient fastener removal of 8 different tire lug nut sizes Thin walled socket with reduced thickness allow easy access to recessed wheel nuts where space is limited Constructed from high strength Chromium Molybdenum steel with a black phosphate finish for high resistance to corrosion for maximum socket life Socket set comes fully labeled for easy identification in a sturdy blow molded case for convenient storage Set contains 4 flip sockets: 17mm x 19 mm, 21 mm x 22 mm, 3/4" x 13/16",7/8" x 15/16" and a 3" extension bar