Up to 25% more torque with MAX BITET OPEN-END GRIP Reduces rounded and stripped bolts COMFORTABLE I-BEAM HANDLE Ergonomic grip – does not dig into hands Easily and accurately identify wrench size Contains: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm.