Steel: 6140CrV 44-48 HRC Nickel plating A: 22 mm; B: 23 mm; C1: 5 mm; C2: 8 mm; Length: 160 mm Combined key made of chrome-vanadium steel with a reliable 72-tooth ratchet mechanism in the open-end part, made in the form of a swivel joint. The ratchet key speeds up the loosening and tightening of fasteners in both regular and limited space conditions. The minimum angle of the key's return is 5º. Nickel plating with a protective lacquer layer provides additional corrosion resistance for the ratchet key. The ratchet part of the key is not intended for stripping or power pulling of fasteners, for this purpose, a socket profile key or box-end wrenches are used. You can also buy a set of combined ratchet swivel keys.