Professional Quality tested to 10000V and insulated to 1000V AC and 1500V DC for live line working. Manufactured from vanadium steel oil hardened and tempered. Smoothly ground cutting edges separately induction hardened to 61HRC for cutting medium 3.2mm and hard wire 2.2mm. Straight half round jaws have serrated gripping surfaces. Heavy insulated handles with slip guards for extra comfort and safety. Display packed.