Good insulating materials are used to ensures safe use and effectively the risk of electric shock Safely handle circuits breaker installations, outlet repairs, and industrial equipment maintenance across residential, commercial, and automotive applications Essential for electricians, HVAC technicians, and DIYer enthusiasts requiring code compliant tool for precise electrical work and home appliance maintenance Ergonomically designing bit holders ensures secure fastener engagement, while the color coded storage case enables quick identification and tool organization The set contains a variety of specifications, which are suitable for different screw types and meet needs, Manufacturer: BULAIDAI