Abrasive stone Boride Ruby F150 on blank

Boride Ruby stone is used for grinding and fast forming of the cutting edge. It is made on the zirconiс aluminum oxide basis, on a ceramic bond, works efficiently, removes great amount of metal. Sharpening with aluminum oxide abrasives is suitable for the majority of kitchen knives, carpenter tools, hunting and EDC-knives. Aluminum oxide works with any steel lower thatn 58 HRC and soft stainless steels better than silicon carbide, but works a bit more slowly with 60-61 HRC steels. Intended for grinding and rough sharpening.
Gritness (FEPA, grit): F150
Material: zirconic aluminum oxide
Stone dimensions: 150х25х6 mm
Dimensions with a blank: 160х25х9 mm
Work recommendations: cleaning the stone from dirt is performed in water using a hard brush and soap solution. Levelling of the stone is performed on the thick glass with silicon carbide powder.