Steel: 6140CrV 44-48 HRC Nickel-plated A: 14 mm B: 18 mm Length: 160 mm The hinged combined wrench is a non-dismantlable version of a drive and an extension with a hinged twelve-sided end head (angle of inclination 180°). It combines the capabilities of an end head and a socket profile. Designed for efficient use and transmission of significant force when working in hard-to-reach places. Turning the end head parallel to the body of the wrench allows for quick loosening and tightening of fasteners when large force is not required. The socket profile allows for working with fasteners in cases where access to the fastener is only possible from one side. You can also purchase sets of hinged combined wrenches 516 061 and 516 091.