Cutting discs for metal differ from concrete or stone discs in thickness and abrasive layer composition. Thinner discs (1-1.5mm) enable more precise cuts in steel, while thicker ones (2.5-3mm) better withstand concrete cutting. Diamond discs with segmented edges efficiently cut hard materials without overheating.
For fine metal finishing choose discs with P80-P120 grit, while rougher grinding requires P40-P60. Flap discs last longer than traditional ones because the abrasive surface gradually reveals itself during use. Brands like BOSCH and KLINGSPOR offer discs with reinforced structure for safer operation at high speeds.
Specialized blades with tungsten-carbide teeth enable smooth wood cutting with an angle grinder. Tooth count determines cut quality – more teeth mean finer cuts but slower progress. Using standard metal cutting discs on wood is dangerous and produces irregular cuts.
Steel wire brushes remove rust, old paint and welding oxides from metal surfaces. Wheel brushes cover larger areas, while cup brushes access hard-to-reach spots. For sensitive materials use brass wire brushes that leave no marks on the surface.
Accessory diameter must match your tool's diameter – most common are 115mm and 125mm with 22.2mm or 22.23mm center bore. Using a smaller disc on a larger grinder reduces stability, while a larger disc cannot be mounted without special adapters. Always check the maximum permissible RPM on the disc label.
Store cutting and grinding discs in a dry place away from direct sunlight – moisture and UV radiation degrade the binding layer. Before mounting check if the disc is damaged by tapping lightly – a crack produces a dull sound instead of a clear ring. Brands like DREMEL and WOMAX offer sets with protective cases for safe accessory transport.
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