Permagrit Tools, founded in 1991 by world-champion scale aircraft builder Ian Richardson, manufactures professional-grade tungsten‑carbide grit tools designed for challenging materials like composites, plastics, wood, foam, and ceramics. Their tools—ranging from needle and flat files to rotary bits, sanding blocks, spar slotters, and discs—are bonded in metal molds to ensure grit permanence. This gives users rapid, precise shaping without melting, chipping, or clogging. Enduring and versatile, Permagrit tools are trusted in aircraft, motorsport, model‑making, and prototyping.