Steel: 6140CrV 44-48 HRC Nickel-plated A: 16 mm B: 23 mm Length: 175 mm The hinged combination wrench is a non-detachable version of a drive and extender with a hinged twelve-sided socket head (180° angle). It combines the capabilities of a socket head and a box-end profile. Designed for efficient use and transmission of significant force in hard-to-reach areas. The rotation of the socket head parallel to the body of the wrench allows for quick loosening and tightening of fasteners when no excessive force is required. The box-end profile allows for working with fasteners in situations where access to fasteners is only possible from one side. You can also purchase sets of hinged combination wrenches, such as 516 061 and 516 091.