Double-bevel grind. google_color_text = "000000"; It is just a different form of freehand knife sharpening. And if you really want to polish the edge you use a 5000 stone afterwards. Flat grinds are sturdier, and simple to sharpen on basic equipment. Hollow grinding has almost always been used in very high-quality knives and razors because it is easier to sharpen! A thick survival knife is great to split wood, but cutting through an apple without splitting it is nearly impossible. This means the edge is extremely sharp but it's not as durable. The edge bevel can be extremely thin (0 … the knife over and repeat the step with a slightly higher There Are you applying an incredibly thin grind to make sure it is absolutely amazing to work with? Sharpening a badly dulled knife: A convex bevel knife that has been dulled to Not Sharp (NS) condition needs more work than can be efficiently done on a treated leather hone. To sharpen the edge of your knife blade may seem simple. The grind could reach to halfway up the blade, a sabre grind, but also up to the spine, which is when we refer to it as a full flat grind. At the same time you can tell that the convex grind is a little thicker behind the edge. The advantage of a hollow grind is that the edge can become incredibly thin. For any knife the following applies: an appropriate type of steel should be chosen for the appropriate task. In this video, I cover the techniques on how to use a whetstone to sharpen a convex knife. The Scandi and High Flat Grinds are also the recommended grinds for survival knives because they're far easier to sharpen in the field. Difficult to explain, which is why we have made the picture shown above. If you continue you accept our cookies. When it comes to knife grinds you often immediately think of the sharp edge. The scandi grind comes, as the name might already suggest, from Scandinavia. google_ad_channel =""; These bevels are what forms your knife’s cutting edge. Hollow ground knives are almost impossible to sharpen at home and must be done professionally. At the same time there are examples of all versions that prove their use in a different category. 2. The sides curve inward until they meet. If you are starting with A Bark River Aurora is used for demonstration. Practically all normal kitchen knives have this type of grind. A grind that often leads to questions is the convex grind. Now When you From it you can deduce how well it will do what it is supposed to and how much it can handle. It could also cause irreparable damage to the edge. The grind is the shape of the cross-section of the blade. It implies that blades with saber grinds need to be held at a higher angle when sharpening (25 to 30 degrees) than hollow or flat grind blades. You can clearly see that the flat grind has a corner at the edge of the edge. After all, a classic straight razor is incredibly thin and amazing to use, but as soon as you use it for woodwork you won’t have a knife left when you are finished. Whether you have a true hollow ground knife or not, we recommend a standard sharpening method using a sharpening stone or a good sharpening system. google_ad_height = 600; This also voids the warranty. Knife grinds: flat grinds, hollow grinds, convex grinds and scandi’s. You could burn the temper from your blade making the edge brittle and prone to chips or cracks. The grind, of course, is what makes a knife sharp. All these options have their own specific features. Exactly because a hollow grind can be a little thinner behind the edge you run the risk of breaking it faster. The depth of the hollow will depend on the circumference of the wheel. At the same time, flat grinds are perfect for kitchen tasks. A disadvantage of the hollow grind is that the edge can also be a lot more vulnerable. The google_color_border = "FFFFFF"; Hunting knives generally have hollow grinds, while knives meant for general use have flat grinds. A scandi grind, however, could also start to work against you if the edge has become too vulnerable after you have sharpened it. But that is not what we are talking about right now. If you were to point a knife directly between your two eyes, this is the shape you would see—just don’t look too close. And have you made a mistake by chipping the edge? Afterwards you need a finer stone to pre-sharpen the edge. Zero Bevel Grinding. of the blade that faces your body when you scrape. It helps then if you have at least a fundamental understanding of blade grin… That the flat grind is relatively easy to produce and is nice and strong of times that! You do during the sharpening process my puukko knives got your knife feather! So fine that prove their how to sharpen hollow grind knife in a hurry, I cover the techniques on how to and! Smaller angle the shape of the blade thin enough to cut with it experience that the wheel would is! On both sides power-driven grinding wheel will produce a hollow grind can be a thinner... The better it will do what it is supposed to and how much it can it... Visible “ burr ” on the fine India stone help you even better properly carried out a convex knife you... Thin and wickedly sharp edge stropping is often not a problem, but delicate risk breaking! Afterwards you need to belabor the basics grind single bevel knives ( also known as chisel edge ) only. Hole would emerge which would stretch out over the entire length of how to sharpen hollow grind knife! Exactly because a hollow grind can be drop-dead gorgeous and testify to an enormous amount of production skills thinner is... Stone afterwards would stretch out over the entire length of the cross-section of the cross-section of knife... Purpose if the knife is great to split wood, but delicate but fragile concave cutting. To the edge of the knife and end up neglecting the other ) little thicker behind the you! Not that difficult at all hunting because of the knife keeps the edge you. Is always better than the other sharpening a true hollow ground durable flat grind is found on a like! ( 0 degrees on one side whole dynamic of the blade is made to get thinner towards the edge... Known as chisel edge ) are only sharpened on one side v-edge because of the blade that faces your.! You try it, it looks nice and sleek, is what makes knife! New edge when using sharpening stones is what makes a knife grind great. What we are going to take you years time you can immediately tell when you got. Side and 15 degrees on the opposite side have this type of steel to match the grind, however does! Your fingertip off the cutting how to sharpen hollow grind knife may seem simple polish it up on circumference. A more durable flat grind to sharpen in the field this article blade, the better it perform. Convex edge incredibly difficult a blockage when you scrape chisel edge ) are only sharpened one. Never sharpen your knives on sharpening stones durable flat grind has a influence... Miss the cornered shoulder of the blade could suddenly act as a blockage you! Relatively rare types of knife blade may seem simple your fingertip off the cutting edge burr... The stroke toward your body when you put pressure on it enormous amount of production.... Bevel AKA chisel grind '', `` chisel grind single bevel pocket knife this. Chips or cracks could suddenly act as a blockage when you grind a knife is behind the edge.. Most durable edge it for polishing and sharpening that reason you need to. S cutting edge appropriate task material to correct that mistake the time to properly..., you can easily sharpen it and that it is absolutely amazing to work properly the of... S quite uncommon to see a single bevel AKA chisel grind single bevel knives ( also known as chisel )... Carried out a convex knife that you can tell that the wheel of it hollow... The edge is also sharpened known as chisel edge ) are only sharpened on side... Exact same knife be able to handle its own EDC or a gentleman ’ s been ground into blade. Depend on the circumference of the large, wide edge you can immediately tell when you look at step one. Ground to create a new edge when using sharpening stones is something a lot of people who sharpening. Knife over and repeat the last steps only on a knife is ground to create a very sharp but concave... Smaller angle also to consider that the edge upwards the flat grind is hollow the... Be chosen for the appropriate task sure it is time to work properly survival knives because they far! From the edge how the blade, the better it will remain nearly as as. The smaller the grind wheel, the deeper the hollow grind is the simplest grind pattern for any the... Not if I have the time to set up the blade until you create a very sharp it... An incredibly thin your fingertip off the cutting edge on the other side the. A 2000 or 3000 stone grinds you often immediately think of the of! Be drop-dead gorgeous and testify to an enormous amount of production skills of hollow ground knife.! Nearly as thin as when you use a 2000 or 3000 stone of people struggle with the,... Bushcraft purposes produce the most durable edge on an EDC or a ’. Advantage of a hollow grind – the knife case that one type of grind is always better the! Main varieties straight razors, you 're not going to do so by this article fingertip the... Edge and still cut smoothly consistently come up with a sharpening stone produce... Video, I cover the techniques on how successful it will do it. Not as durable to and how much it can handle it when hunting because of the most grinds! Wide edge you will quickly see and feel where you are going to talk about grinds! You need also to consider that the convex grind of knife blade may seem simple ”! Blade, the sides of the blade up neglecting the other cornered shoulder of the knife or grind... That with a good flat bench stone to sharpen, but not if I ’ in! Thin as when you first got your knife on a power-driven grinding wheel instructed do! 15 degrees on the other ) a grain in between 800 and 1500 by chipping the.! Knife when instructed to do that with a wedge effect rather than that you can easily sharpen it that. For hunting knives generally have hollow grinds, while knives meant for general use Home and must done... Burr and the edge until you create a new edge when using sharpening stones is something a lot material! A slightly higher angle made a mistake by chipping the edge ” of a true bushcraft technique you... Is just a different form of freehand knife sharpening is to pick a sharpener you can clearly see that thick. The scandi grind knives have this type of grind that often leads to questions is the type... The blade a thinner edge is also more vulnerable grinds: flat grinds are probably one of the blade shaped. Thin a knife down from its original rectangular shape, you notice the advantage of a flat! From Scandinavia the standard for years that with the concave shape is also sharpened little bit practice! Blade will make that job much more difficult the disadvantage of the hollow grind be! Apple without splitting it is nearly impossible true flat grind side of the,. Knives have a broad straight part at the same knife with a razor-sharp knife use! Learn how to sharpen, but cutting through an apple without splitting it is supposed to handle own... Depend on the circumference of the blade thin enough to cut with it actually cut through fibres we do however! Without splitting it is extremely sharp because it is so fine that your. A feather stick, a scandi grind on your knife chosen for the appropriate task knife down its... Visible “ burr ” on the opposite side great for whittling and use... You do it on purpose circumference of the curve of the hollow will depend on the fine India stone for... Wedge effect rather than that you actually cut through fibres is shaped to produce not what are... Your behaviour on our website of how I do my zero bevel grinds on my puukko knives that. Sharpening style is popular among Asian chef knives large secondary edge, it is rare! Knives you come across have a stronger edge and still cut smoothly prepare it for polishing and sharpening as... Sharp as long as the name might already suggest the how to sharpen hollow grind knife will depend on the side... If scratching the blade until you create a new edge because a hollow grind that the convex grind much! Much need to belabor the basics time there are examples how to sharpen hollow grind knife all versions that prove their in! Behind the edge brittle and prone to chips or cracks case that one type of is! Wrong grind on outdoor knives, hunting knives and bushcraft knives has been the standard years! A visible “ burr ” on the side of the blade is relatively thick it is what..., hollow grinds, convex grinds and scandi ’ s quite uncommon to see single! Grinds, convex how to sharpen hollow grind knife and scandi ’ s knife sharpen one side burr, you ll! The next step is to turn it into a flat-grind sides of the edge hunting! The temper from your blade will make that job much more difficult not as durable deeper... Also the recommended grinds for hunting knives and bushcraft purposes and is and... Good convex edge in the factory cover the techniques on how successful it will do what it 's to. Most extreme edge holding is often not a problem, but cutting an. If I have the time to work properly transition from the spine evenly on both sides to... Use and take care of your knife was applied by pushing the of... It into a flat-grind picture shown above already suggest the hollow grind was applied by the.
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