blue belgian coticule whetstone, multi-form

Extra-fine waterstone. Versatile shape for sharpening v-parting tools and gouges. 20 - 30 % garnets.

The bevelled edge has an angle of 45°. The rounded edge tapers from 2 mm to 13 mm over the entire length of the stone. This makes the moulding stone suitable for many tool moulds. The blue belgian coticule whetstone polygon 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 bonded 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 grind tools with a straight edge, such as v-parting tools, chisels or plane blades.

If the profile of the grindstones does not exactly match your tools, you can also simply customise it to your requirements.

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