Steel: 6140CrV 44-48 HRC Nickel plating A: 50 mm; B: 35 mm; C1: 9 mm; C2: 12 mm; Length: 290 mm The classic version of a combination wrench with a box profile on one side and a twelve-point open-end profile on the other. The combination wrench is the most common type of wrench as it combines the capabilities of box and open-end profiles. The open-end profile is offset from the longitudinal axis of the wrench by 15°, which allows for working in limited spaces. The precision manufacturing of the twelve-point open-end profile minimizes the chance of slippage on fastener edges. The angle of inclination of the box-end part relative to the longitudinal axis of the wrench is 15°, which allows for a minimal angular step when working in hard-to-reach areas, up to 30°. You can also purchase inch wrenches in sets.