Select Grade Coticule Whetstone 175×40

The Select Grade Coticule Whetstone 175×40 is a natural stone mined in Belgium by the Ardennes company, who have been in business since 1865. These stones are approximately 480 million years old and are made from compressed volcanic ash and clay sediment layers.

This Select Grade Coticule Whetstone size 175mm x 40mm and is perfect for honing straight razors or sharpening knives. The generous length of this stone at 175mm  gives a greater surface area for sharpening. This length stone is capable of sharpening razors and knives slightly faster than shorter stones. Less time is taken flipping the tool over once you reach the end of the stone.

Stone Size: 175mm x 40mm

Thickness: 16mm – 22mm

Grade: Select

The surface of the select grade stones contain very few imperfections. In comparison to the standard grade, only minor colour variations, blemishes, black lines and specks can be expected. The select grade also has a uniform density across the stones surface. These minor imperfections do not affect the sharpening properties.

Backing: Slate (no sharpening properties)

Being a natural stone there are variations in colour and texture. No two are exactly the same.

Coticule whetstone consists of 30 to 42% garnet crystals bonded together with mica. These garnets give Coticule whetstone its exceptional sharpening properties and make it one of the worlds leading natural sharpeners. The garnets are a dodecahedron shape which has twelve surfaces with obtuse angles. The garnets have a diameter of 5 to 15 microns and penetrate 1 to 3 microns deep into metal. This near perfect geometric shape for sharpening metal (obtuse angles polish the metal) and the very large numbers of these garnets ensure that the steel is sharpened quickly and extremely finely.It only takes a couple of minutes working your desired tool on a coticule whetstone to achieve a razor sharp edge.

Handmade by Ardennes of Belgium.

This Select Grade Coticule Whetstone 175×40 comes with a FREE slurry stone.

We have a wooden storage box available to store this stone.