Ceramic Belts 1" X 30" - 6" X 89"

They provide the fastest cut and longest life on steel. Ceramic sanding belts and discs are usually orange (PS992) or purple (Bora 7 premium). They are a blend of 20-50% microcrystaline ceramic and "fused" aluminum oxide. The grain size is under 1 micron, resulting in higher density and toughness. They self sharpen by fracturing only on hard materials like steel, and require more pressure than other softer abrasives.