Milwaukee 1000V Insulated Screwdrivers are the only UL Classified screwdrivers tested to IEC 60900:2012, ASTM F1505-10 & NFPA 70E standards and meet the OSHA insulated tool requirement. Providing an uncompromising safety rating, Milwaukee Insulated Screwdrivers are flame retardant and impact resistant and feature a dual layer insulation for maximum protection and a visual wear indicator to issue a replacement warning to the user.