The hard metal cup discs by bosch are the ideal accessory for stripping surfaces and edges in gaps or grooves fits all current single handed angle grinders diameter 115mm examples of use straightening or grinding glass fibre plastics shaping chalky sandstone plasterboards and porous concrete removing thick layers of paint and adhesive residues smoothing boarding residues product advantages no loading of the grinding surface simply clean with a wire brush 50 x longer life than sickorund