Since 1959, Amcraft has been manufacturing Fiberglass Duct Board tools in the USA! Amcraft quickly became the top manufacturer of HVAC duct board tools and still remains there today. Amcraft developed the color coded handle system that is prevalent in the HVAC industry today. Competitors all copied the same color code system. We are proud to stock and distribute all of the Amcraft duct board tools necessary for field fabricated V-Groove or Shiplap methods.