Perma-Grit Tools Universal Sanding Block SB280 280 x 52mm 180/320 Dual Grit COARSE/FINE. Perma-Grit abrasive blocks are designed for cutting, shaping and sanding. Works with all wood types, glass fibre, carbon fibre, kevlar, plexiglass, lexan, perspex, acrylics, plastics, polystyrene, brass, copper, aluminium, ceramics, stone, horn and antler.
