Both Belgian Blue and Vielsalm Coticule are ancient stone layers found in the Belgian Ardenne Mountains with characteristics similar to both Novaculite and Siliciclastic sedimentary stone in that it is a metamorphic stone consisting of both gray and yellow volcanic ash mixed with tiny Spessartite Garnet crystals suspended in a clay matrix. However, due to its geology, both types of stone occur only in vertical seams sandwiched between two thick layers of bluish-purple slate and thus, they must be meticulously extracted mostly by hand. However, this type of extraction process is both very time-consuming and very labor-intensive and, quarrymen can only extract the stone for a few months each year due to inclement weather conditions. Consequently, both Belgium Blue and Coticule whetstones tend to be somewhat expensive.
You need the right size of sharpening stone that fit the type and size of your blades and tools. In general, 6-inches stones are the smaller models and 8-inches are the larger ones. The stones larger than 8 inches are work best for big-sized blades and tools. You may also find sort of ‘pocket knife sharpener’ out there. Most of the credit card sized sharpening stone are smaller than 6 inches and ideal for on the go sharpening not for regular basis.
The more you use the sharpening stone; the edges of each particle within the stone tend to become slightly rounded over time. When you notice that it is taking much longer to hone blades and edges, it means you need to replace the stone with a new one. Sharpening stones come with decks that make it convenient to keep the tool in balance on the stone.
You might not need to spend hundreds of pounds to get the best knife sharpener, but you do need to know what you're doing. Warner gave me a crash course in the technique. As a newbie to this method, it took a while to get used to (especially since Warner handed me a knife that had never previously been sharpened) but after half an hour's practice and a little encouragement, I got the hang of it. Here's what I learned...
I've been using this stone for months and have started to find that, while the fine side does provide a nice sharp edge, the 400gr side is wearing my knives unevenly, which causes me to be unable to finely sharpen the entire length of the blade when moving to the fine side. The logo that is put in the middle of the 400gr side of the knife is causing more material to be removed than the rest of the blade when I'm sweeping across. I even verified this by going straight down the length of the fine side and watching the wear pattern come from the material coming off of the knife onto the stone.
Now move the blade – with a little pressure – in regular movements up and down along the sharpening stone. Always maintain the angle between the blade and stone. You will notice a burr become visible after five or so movements. Mentally divide the blade into three sections if the knife has a large blade. Always start with the tip and work back towards the bolster.
A: We’re all told that a sharp knife is safer than a dull knife yet most everyone knows that merely touching a sharp knife can often result in a painful cut while we can wrap our hand around a dull blade with little worry. So why would anyone in their right mind claim that a sharp one is safer than a dull one? To a certain extent it’s a matter of semantics for sure, because there is no denying you have to be extremely careful around really sharp knives. But at the same time there is a very good reason to consider a dull knife to be more of a safety hazard than a sharp knife.
It is sometimes too confusing on understanding the right sharpener that right to our tools. Then using the chart above you can consider on what is the right stone. Green, red, yellow and blue line they consist of the most familiar and affordable models of sharpening stone to purchase. You can see the performance of each stone in the chart. Silicon Carbide, Aluminum Oxide, and Arkansas they are typically used with the oil (Oil Stones). Waterstones (Synthetic Waterstones) are generally made of Aluminum Oxide too, then people also use oil in place of water with their Waterstone or use water on their Silicon Carbide sharpening stone in place of oil. In this group, Waterstones is the most preferred because of its easy for sharpening edges in shorter time.
This coarse grit whetstone is great for prepping old and dull knives that need to be sharpened with a fine grit stone. One of my good knives edge looked like someone had tried to chop barbed wire. After ten minutes on each side of the stone, the edge was smooth and free of imperfections. After it hit the knife with the fine grit stone, I was cutting onions and apples like hot butter! I would soak this stone for 12-24 hours before using. It sucks water like a sponge. The surface needs to be damp when you sharpen.
3. Place the knife blade flat on the stone and raise it to a 10 to 15 degree angle. The key to knife sharpening is maintaining a constant angle. Different knives require different sharpening angles. For a pocket knife, shoot for a 10 to 15 degree angle. This will give you an edge that’s sharp enough for most daily needs, but not sharp enough to perform heart surgery. Keeping a constant angle by hand takes a lot of practice. If you’re having difficulty, you might consider investing in a sharpening guide. It takes all the guess work out of maintaining the needed angle. They cost about $10.
These are very popular stones. 8" Dia-Sharps have a single grit per stone making them more expensive, but at 8" by 3" they are wider than the 8" DuoSharps, offering a good working surface. The 8" Dia-Sharp line also has the widest range of grits available from DMT, with extra extra coarse, medium extra fine and extra extra fine options not available in other sizes, so it is good line to consider. One coarse and one fine stone is a good starting point.