Professional Quality tested to 10000V and insulated to 1000V AC and 1500V DC for live line working. Manufactured from special tool steel oil hardened and tempered. Smoothly ground heads with cutting edges separately induction hardened to 61HRC for cutting medium wire 2.5mm and hard wire 1.6mm. The flat round jaws have serrated gripping surfaces. Heavy insulated handles with slip guards for extra comfort and safety. Display packed.