The Select Grade Coticule Size 9 Bout is a natural whetstone mined in Belgium by the Ardennes company. This company has been in business since 1865. Coticule whetstones are approximately 480 million years old and are made from compressed volcanic ash and clay sediment layers that have been compressed over time to form their unique properties.
Coticule whetstones are rated at approximately 8000 grit when used with plain water.
The Select Grade Coticule Size 9 Bout is ideal for those looking for a large piece of coticule. This stone is capable of sharpening straight razors and knives with ease. Long bladed knives are especially easy to sharpen with this size stone due to its large surface area. The size 9 bout is an a well priced option for those looking for a large piece of coticule. They are a substantial heavy piece of stone that will stay put on any surface while you are working on it.
Stone Size: Approx. 90mm – 110mm long, 70cm2 – 84cm2
Thickness: 16mm – 22mm
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.
Being a natural whetstone there are variations in colour, texture and sharpening properties. No two are exactly that 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 the worlds best natural knife sharpener. 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 perfect geometric shape for sharpening (obtuse angles polish the metal) and the large numbers of these garnets ensure that the blade is sharpened both very quickly and extremely finely.
Handmade by Ardennes of Belgium.