Round Tube File COARSE, 20mm diameter.   Dims approx. 215 x 20 x 20mm. Shape arches and curves with precision.  No need to glue sandpaper to dowels anymore!  These tools are perfect for fillets, grooves and all concave curves.  Use to shape or enlarge holes or arches etc. Shape cowlings, nose cones, wheel spats etc.
Perma-Grit® Tools will cut:-  All Woods, Glass Fiber, Carbon Fiber, Kevlar, Plexiglas, Lexan, Perspex, Acrylics, Plastics, Polystyrene, Brass, Copper, Aluminium, Ceramics, Stone, Horn, Antler etc.