Adjustment by sliding one jaw directly on to the workpiece: fast, reliable and comfortable handling Fine adjustment: allows optimum adjustment to differently sized workpieces and comfortable handle position Good access to the workpiece due to slim size of head and joint area Self-clamping on pipes and nuts: no slipping on the workpiece, effortless working Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping, Weight: 0.7495716908 pounds, Manufacturer: Knipex