with a long cutting edge, high cutting performance thanks to the power joint, precision stripping holes for 1.5 and 2.5 mm² conductors, easy cutting of NYM cables up to 5 x 2.5 mm², long tips for the finest cutting work, even in confined spaces, induction-hardened precision cutting edges , cutting edge hardness approx. 60 HRC, vanadium electric steel, forged, oil-hardened in several stages