5-Piece S-Style Obstruction Wrench Set, 3/8"-13/16", #WRS-5S Made of Chrome vanadium steel 12 point box ends Fully polished chrome finish Conforms to ANSI specs Size: 3/8" X 13/32", 7/16" X 1/2", 9/16" X 19/32", 5/8" X 11/16", 3/4" X 13/16"