Klein insulated tools combine excellent functionality along with reduction of risk of injury where a tool might make contact with an energized source with voltage up to 1000 V. Two layers of insulation provide protection against electric shock. Clearly marked with the official 1000 V rating symbol. Round shank with square-recess tip. 1000 V-rated for safety Two layers of insulation provide protection against electric shock Klein insulated tools are individually tested to exceed IEC 60900 and ASTM F1505 standards for insulated tools Cushion grip handle for greater torque and comfort Custom, US made tool steel