Use to profile edges, feather edges, block sanding, square off materials or sand a perfect dihedral.   When placed on their edge, you are able to sand a perfect right angle.   Popular block that enables you to produce a perfect leading and trailing edge to your wings.  Flat sanding surface, coarse grit one side, fine on the other. Dims approx 280 x 52 x 41mm (11") The steel gritted sheets are bonded with industrial double sided tape, to the custom made anodised aluminium extrusion, which is light, clean and easy to use and will never warp.

Perma-Grit® Tools will cut:-  All Woods, Glass Fibre, Carbon Fibre, Kevlar, Plexiglas, Lexan, Perspex, Acrylics, Plastics, Polystyrene, Brass, Copper, Aluminum, Ceramics etc.

COARSE grit equivalent approx. UK 180 / US 60

FINE grit equivalent approx. UK 320 / US 120