Since these cover several orders of magnitude a logarithmic scale is most appropriate

We recommend to use loose silicon carbide powder or diamond lapping plate

Such generic names are confusing

tight tolerances

boride t2 series stone set for edge pro Since these cover several ordersBoride sharpening stones are used for sharpening knives on Edge Pro sharpeners. Boride offers a wide range of stones with different performance values and different rates of wear. Boride T2 series stones are made of aluminum oxide. All Boride stones are 6 mm thick and are mounted on high quality aluminum blanks. Stones that are 6 mm thick offer a longer life cycle than stock Edge Pro stones that are 3 mm thick and are becoming a community standard.