Milwaukee® 1000V Insulated Screwdrivers are the only UL® listed screwdrivers tested to IEC 60900:2012, ASTM F1505-10 and NFPA 70E, and meet OSHA requirements for insulated tools. Offering an uncompromising safety rating, Milwaukee Insulated Screwdrivers are flame-retardant and impact-resistant, they also feature two-layer insulation for maximum protection and a visual indication of wear so you know when to replace them.