Insulated cabinet tip round shank screwdriver with overall length 12-3/8'' (314 mm), shank length 7'' (178 mm) and shank tip width 5/16'' (8 mm). Weight (lbs.): .40. 1000V Rated for safety. Durable, two-layer, molded insulation to meet or exceed all ASTM and IEC standards for insulated tools. Custom US-made tool steel. Cushion-Grip handle for superior torque and comfort.