Individually tested to exceed the IEC 60900 and ASTM F1505 standards, for insulated tools, and clearly marked with the official 1000-volt rating symbol. Two layers of insulation provide protection against electric shock. Extra-strong construction for line work. Tough, tempered-steel blade provides maximum sharpness and durability to withstand frequent cable scoring. Rugged insulated handle provides a firm, comfortable grip and has large finger guard.