blue belgian coticule whetstone, for gouges

Extra-fine water stone. For sharpening gouges. 20 - 30 % garnets. 100 x 40 mm x 10/3 mm.

The stone sharpens slightly slower than the yellow belgian coticule whetstone polygon, but has a longer service life.

The blue belgian coticule whestone polygon is a natural stone and is usually composed of 20 to 30 % garnets, which are bound together by volcanic ash. The garnet content gives the Belgian coticule whetstone polygon its exceptional cutting properties.

The belgian coticule whetstone polygon is a closed-pored stone, which is why it cannot clog. Therefore, only water is used for sharpening, never oil. Oil is only used on porous stones to prevent the deposition of metal particles in the pores.

It is sufficient to moisten the surface of the belgian coticule whetstone polygon - it should not be immersed in water. Grenades are exposed on the surface of the belgian coticule whetstone polygon during sharpening and the moisture creates a kind of grinding paste.

When sharpening carving tools with larger belgian coticule whetstone polygons, the stone can become uneven due to frequent use. To achieve a flat surface again for precise sharpening results, you can dress the stone: To do this, place a piece of sandpaper on a flat surface. Add a little water and sand the surface of the Coticule. Use sandpaper with a grain size of around 80 to 100 micrometres. The flat surface of your Belgian coticule whetstone polygon is particularly important if you want to sharpen tools with a straight edge, such as v-parting tools, chisels or plane blades.

You can find more information about Belgian coticule whetstones and coticule sharpening stones in our expertise article Coticule - Belgian coticule whetstone polygon. If you would like to know more about sharpening woodworking tools, please continue reading in our specialist knowledge articles Sharpening tools by hand: Sharpening stones and gouges by hand.