Perma-Grit Australia and RCWorld is the first choice of abrasive tool for professionals and modellers worldwide Perma-Grit design and manufacture Tungsten Carbide grit abrasive tools for the Performance Car, Boat and Aircraft market.Renowned for their longevity and ability to work modern composite materials like Carbon Fibre Kevlar Glass Fibre Perspex Plexiglas Lexan Acrylics Plastics Polystyrenes and more conventional materials such as Woods Ceramics Stone Marble Glass and Metal.Designed and used by Hobby and Prototype Model builders and high performance Aircraft Boat and Formula 1 Racing Car manufacturers around the world All used Perma-Grit Tools For nearly 20 years. PERMA-GRIT RIFFLER FILES Overall length 140mm. Shaft diameter 3mmMaximum width of grit 4.25mm x 4.25mm. This file cuts in any direction and does not clog easily. Cuts quickly leaving an excellent finish.Riffler files are popular with woodcarvers and sculptors, allowing access to difficult to reach places These files are popular with woodcarvers and sculptors, allowing access to difficult to reach places. APPLICATIONS Extremely versatile tools, popular for detailed work.These file cuts in any direction and does not clog easily. Cuts quickly leaving an excellent finish. Riffler files are popular with woodcarvers and sculptors, allowing access to difficult to reach places. ABOUT Perma-Grit design and manufacture Tungsten Carbide grit abrasive tools for the Performance Car, Boat and Aircraft market.