First UL tested and classified insulated tools available 1000 Volt certified (1000V AC, 1500V DC) Meets ASTM F1505-01 and IEC 60 900 standards Meets OSHA requirements for insulated tools (29 CFR 1910) Drop-forged, high carbon steel construction Precision-ground, hardened cutting edges provide accurate cuts without cable distortion Designed for maximum leverage with minimum effort Cuts 2/0 copper and 4/0 aluminum