Steel: 6140CrV 44-48 HRC Nickel-plated A: 22 mm B: 33 mm Length: 225 mm The hinged combination wrench is a non-separable version of a drive and extender with a hinged twelve-point socket head (180° angle). It combines the capabilities of a socket head and a box profile. It is designed for effective use and transmission of significant force when working in hard-to-reach areas. Turning 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 profile allows for work with fasteners in cases when access to them is possible only from one side. You can also purchase sets of hinged combination wrenches 516 061 and 516 091.