Features and Benefits: * Triple square impact bits designed for high torque applications typically found in cylinder head bolts and drive trains * Impact grade bits forged from high quality CR-MO Alloy steel * Sunex Tools® impact sockets meet or exceed ANSI specifications * Stubby design is ideal for work in tight spaces * Includes compact clip rail packaging Set includes: M4 (304XZN), M5 (305XZN), M6 (306XZN), M8 (308XZN), M10 (310XZN), M12 (312XZN), M14 (314XZN), M16 (316XZN). Lifetime warranty.