Acc. to DIN ISO 5749, Convex handle shape for a high force build-up (rowned surfaces/handles - i.e. which are hardly rounded - prevent unfavourable, punctual peak forces. As a result, the force is evenly spread across your hand.), With slender head, ideal for confined spaces, Induction-hardened precision cutting edges, hardness 63 - 65 HRC, For medium-hard wire 1.6 mm, GEDORE special hardened and tempered steel, drop-forged, oil-hardened and annealed