Powerbuilt 642405 3/8-Inch Drive Metric Hex Bit Socket Set, 8-Piece 8Pc mm ball end hex bit socket Tool solutions for most all situations Built to exceed tool standards Made with precision and quality in mind Highly durable Includes 3, 4, 5, 6, 7, 8, 9 and 10mm hex bit sockets on a socket rail Premium S2 alloy steel bits and chrome vanadium sockets Meets or exceeds ANSI standards Lifetime warranty