The Draper Knipex is professional quality, tested to 10 kV and insulated to 1 kV AC and 1. 5 kV DC for live line working. Manufactured from chrome vanadium electric steel, oil hardened and tempered. Smoothly ground heads with cutting edges are separately induction hardened to 64 HRC for cutting piano, hard and soft wires. The cutter has no conventional centre rivet but a forged-on pivot which can withstand extra leverage. Heavy insulated handles with slip guards for extra comfort and safety.