DIN ISO 8976 standard. Handle: with plastic coating prevents slipping Teeth: inductively hardened, polished Head: black Material: chrome-vanadium steel, hardened. Joint: passing axle Narrow jaws Application fast and accurate fine-tuning self-tightening for pipes and nuts – the workpiece does not slide, no great hand effort is required self-adhesive to pipes and nuts without sliding on the part the pivot bolt engages securely, even under load, involuntary displacement is not possible good access to the work environment