"Professional-quality socket set, made with chrome molybdenum steel. U.S.A. Point Size qty. 6, Pieces qty. 8, Material Type Chrome molybdenum steel, Measurement Type Standard SAE, Storage Type Clip rail, SAE Socket Size in. Standard impact 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, Drive in. 3/8. Includes 6-pt. standard impact sockets in 5/16in., 3/8in., 7/16in., 1/2in., 9/16in., 5/8in., 11/16in. and 3/4in. sizes Clip rail for storage"