Steel: 6140CrV 44-48 HRC Nickel-plating A: 32 mm; B: 30 mm; C1: 8 mm; C2: 10 mm; Length: 200 mm A combination wrench made of chrome-vanadium steel with a reliable 72-tooth ratcheting mechanism in the open end. The ratcheting feature speeds up the loosening and tightening of fasteners in both normal and restricted spaces. Provides high torque and a minimal return angle of 5º. The ratcheting end of the wrench is not intended for removing or forcefully tightening fasteners, for that purpose, a socket wrench or box end wrench is used. You can also purchase a set of combination ratcheting wrenches.