W8 8000 is part of Suehiro traditional Waterstone series which includes Kouga 3000

Absolutely not

We do not recommend to use it for knives with a spine thicker than 2

The manufacturer applies FEPA-F grit and national standard GOST 9206 to mark the stone on the reverse side (for example

boride cs hd stone for edge pro Grit:800 W8 8000 is part ofBoride Sharpening Stones are used for sharpening knives on Hapstone Pro sharpeners. Boride offers a wide range of stones with different performance values and different rates of wear. Boride stones are made of aluminum oxide, with the exception of CS HD series stones, which are made of silicon carbide. 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