HexTool® composite tooling material combines tolerance accuracy with extreme lightness. HexTool® is Hexcel’s patented composite tooling material that, for the first time, enables the tolerance accuracy achieved with metals to be combined with the extreme lightness of carbon fiber composites. HexTool® molds are easy to repair and are simple to modify. This new concept for lightweight, efficient large-scale tools is cost-effective compared with conventional composite tools and metal molds, especially those made from Invar®.