The Klein Tools brand is the #1 preferred hand tool in the electrical industry, as well as one of the leading brands in the maintenance, construction and industrial trades. Look in any tool pouch, tool crib, maintenance shop, or industrial tool cart, and you will find a pair of Klein pliers or Kleins as they are often called. Whether the user is an electrician, general plant maintenance technician, communications specialist or HVAC technician, professional tradesmen rely on Klein Tools for premium quality, durability and performance.