Acc. to DIN 3113, Form B, ISO 3318, ISO 7738, Vanadium steel 31CrV3, chrome-plated, Carefully forged and professionally machined, Ring: 10° offset from shaft, with UD profile for gentle transmission of force, Overloading indicated by deformation, The offset ring ensures a better grip on deep-seated or inset nuts or bolts, Top-grade industrial quality fo