Steel: 6140CrV 44-48 HRC Nickel plating A: 30 mm; B: 21 mm; C1: 6 mm; C2: 9 mm; Length: 180 mm The classic version of a combination wrench with a box-end profile on one side and a twelve-point profile on the other. The combination wrench is the most common type of wrench as it combines the possibilities of both the box-end and open-end profiles. The open-end profile is set at a 15° angle from the longitudinal axis of the wrench body, allowing for work in restricted spaces. The precision manufacturing of the twelve-point open-end profile minimizes the likelihood of the fastener slipping. The angle of the box-end part in relation to the longitudinal axis of the wrench body is 15°, allowing for a minimal angular step of up to 30° when working in hard-to-reach areas. You can also purchase combination wrench sets.