Perma-Grit tools were first introduced to Ivan Shaw in 1995, designer and builder of the Europa aircraft. Ivan suggested that the USA needed our tools for their Composite (Plastic) aircraft. Perma-Grit tools are now recommended by many leading kit plane manufacturers. Europa, Lancair, Seawind, Cosy, LongEZ, Velocity and Jabiru to name just a few. Recommended and used by the Light Aircraft Association in the UK and the Experimental Aircraft Association in the USA. If you are building, repairing or restoring a traditional Wooden, Metal or Composite Aircraft you need our abrasives. "Finishing in record time"