The Klein Tools 6017INS Insulated 3/16 '' Cabinet-Tip 7 '' Round-Shank Screwdriver is Rated for safety. It a long-lasting, two-layer, shaped insulation to meet or exceed all ASTM and IEC standards for insulated tools. It is from custom US-made tool steel. It a Cushion-Grip handle for select torque and comfort. Klein Tools makes over 3,000 products, 7 manufacturing plants in the U.S. and manufactures the majority of those products in the U.S.. The Klein family has been to manufacturing the highest prize hand tools with unmated durability and comfort for over 155 years.