hollow grind vs flat grind chisel

Flat grind. New comments cannot be posted and votes cannot be cast, More posts from the woodworking community. This is perhaps the oldest of all knife grinds and is one of the more difficult grinds to achieve. I wouldn't use a belt sander for the same things. But this guy is a genius and he does it : https://youtu.be/phL4suPO42Q :). SINGLE-BEVEL GRIND Also called a chisel grind, this describes a blade that is beveled on only one side. All information is provided "as is" with all faults without warranty of any kind, either express or implied. Paul Seller's method without diamond stones, I'd have to buy a lapping plate, wet or dry, a strop, adhesive spray and polishing compound. It's like any tool really. Double Grind - Knife edge bevels are ground on both side of the blade. Hollow grind vs Flat grind is a common debate with Spyderco since so many models are available in both configurations. Who knows when the first argument over the best blade grind started? Hollow grind — a knife blade ground to create a characteristic concave, beveled cutting edge. Hollow & Flat Grinding. As one sharpens the blade and gets past the initial wider part of the blade, the blade will become easier to sharpen and will very slowly become more difficult as the hollow grind becomes thicker up the blade. The Dragonfly2 Salt is actually hollow ground but often that is referred to "high hollow" since the grind line stop over half past the middle of the blade. Part 5: Grinding the Hollow. Like some saber grind knives as well. This is how straight razors for shaving are ground. Hollow grind: The blade is ground to create a concave, beveled cutting edge. I thought it would be better getting diamond stones in the future as they are a one-time purchase. Get the Mag. The properties of the steel, the profile or grind, and the intended use should all be considered and work together. Can I do the whole lot completely on waterstones? The concave offers hundreds of sharpenings made easier than convex or flat ground … An appropriate grind depends upon a blade’s intended use and the knife steel composing it. Nice find at the pawn shop. Double-bevel grind. It could also cause irreparable damage to the edge. The modern tactical and bushcraftmovements have brought heated debates on which grind is the best. Discussion in 'Non-Firearm Weapons' started by jmr40, Oct 12, 2020. This includes V, all types of Convex edges and Hollow grind edges. Grinds: Flat, Hollow, Sabre, Chisel, Convex, American Tanto Dual, and Scandi. The first huge lesson we got was on sharpening. Some hardened tool steel will support a hollow grind where a softer or more brittle steel would not. I need some informed opinion as to the best of two purchase options. T o sharpen the Scandi grind by hand, place the bevel flat to the sharpening stone and work on the whole edge. In the following video, Walter Sorrells explains how each blade grind is produced, and how this affects its durability and cutting performance. Flat grind is great for all around use. 1) Hollow Grind, 2) Flat Grind (AKA Scandi) 3) Sabre Grind 4) Chisel Grind 5) Double bevel Grind 6) Convex Grind Now you wouldn't want 1 or 2 on a chopper (Too thin at the edge), you wouldn't want 4 on a slicer or skinner (The "Angle" is wrong for that)Or 5 (too thick, causing drag. But is there a so-called best blade grind … Chisel Grind – (AKA “zero bevel grind” or “single bevel grind”) – Just like a—you guessed it—chisel, this knife edge is flat on one side and the opposite side ground between 20-30 degrees to about halfway up toward the spine. They often set these things aside for me and use it for barter. I mean taking a rusty chisel with nicked edges up to a good condition. The grind on a blade lends itself towards different advantages and disadvantages. There's also no better way to sharpen chisels and plane irons than by hand with a little elbow grease. You are on the right track. Every single (western) plane iron I have sees a bench grinder once or twice a year. Convex or “appleseed”? This is characteristic of straight razors, used for shaving, and yields a very sharp but weak edge, which requires stropping for maintenance. I got this set for 20 bucks. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. For now I was hoping to do rough grinding on stone to remove rust, etc. I would have made an instructable out of it, but I don't have any pictures of the process and it's pretty easy to see how the thing goes t… I use a 6" wheel driven by a 1725 rpm motor with a 2:4 pulley set up to cut the speed in half. I worry this may resemble spam, but it's not the case. Now I don't mean flat for its entire length. The bevels may extend the full width of the blade (full hollow grind) or only a portion of its width. Chisel: According to Knife Edge Grinds, a chisel grind has only a single edge angle. In a flat grind, both sides of the metal are ground consistently, gradually tapering from the spine to the edge, forming a long isosceles triangle. Single Grind - Knife edge bevel is ground only on one side of the blade. I would not use a grinding wheel to grind the primary bevel on a mortise chisel or a japanese chisel. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Chisel This grind is most often found on chisels but can also be found on other types of blades such as high end Japanese chef knives, modern folders and some modern “art” tactical knives. Although The High Road has attempted to provide accurate information on the forum, The High Road assumes no responsibility for the accuracy of the information. Of course, all of these types of edges come with their own unique features, but in this piece, we’re going to take a more detailed look at a hollow grind. Using a "doubler plate" and "table saw analogy " to hollow grind a blade. Please submit links to how-to pages and videos, pictures of beautiful and amazing pieces you made for us to admire, or help you finish. A lot of metal is removed from the blade, so it is thus more difficult to grind, which is one factor … Never underestimate the value of a hollow grind, I don't mean for day to day sharpening, I mean restoring old rusty chisels with damaged edges. What would be the grits I need. Flat Grind. I think it depends on the steel and the intended use. Every single student in our school is taught to sharpen using the "hollow grind" method-using a slow speed grinder to establish the edge joint and angle, then honed by hand on a stone.Grinding and hand sharpening are not mutually exclusive. Understanding a hollow grind Anyone who tells you you don't need one has never cambered an iron, sharpened a cambered iron, restored an old pitted iron/chisel, or experienced the joy and ease of sharpening a hollow ground edge. P.S. The reason why I ask is that I respect opinions of people on here. It requires stropping, which is fine, but the edge won’t last long. Press question mark to learn the rest of the keyboard shortcuts. The type of grind on your knife has a considerable influence on how successful it will perform a certain task. There's no better way to ruin chisels and plane irons that mechanical grinder. The hollow grind has a long history of use in the hunting community because the thin and extremely sharp edge is great for field dressing animals. But that would be a very odd chisel. Work smarter, not harder. It may be flat or hollow ground. The discussion in this thread, before you have joint us, was focused on the chisel tip cutting edge. I also find it a necessity to hollow grind all blades. Flat grind — The blade tapers all the way from the spine to the edge from both sides. Scandi is meant for all around utility which is easy to restore. These chisels benefit from a flat bevel due to the abuse they take when chopping. A Simple Hollow Grinding Jig: This is a jig I threw together from things in my shop that makes it easy to create hollow-ground knife bevels. Full Flat. Part 6: Repairing a Damaged Edge Without Burning the Steel. The grind of a blade is where a key battle is won, and blade geometry varies widely. What it is: A double-bevel grind, also known as a "compound grind," can, in overall profile, incorporate virtually any other grind -- flat, hollow, convex -- with the addition of a secondary V-bevel to produce a cutting edge. Re: Hollow grind vs. flat or convex. There are many kinds of grinds out there, including the hollow grind, full flat grind, chisel grind, sabre grind, convex grind, and scandi grind. (You must log in or sign up to reply here.). Mortise chisel or a japanese chisel only interested in using these to restore/sharpen chisels/plane irons and i wonder one! Single edge angle the discussion in 'Non-Firearm Weapons ' started by jmr40, 12! Use it for barter blade tapers all the way from the woodworking community your ego but! Grinding has almost always been used in very high-quality knives and razors because it is pretty easy to restore or... Set up to reply here. ) Dry bench grinder once or twice a year this site cookies... '' grinder is on the steel discussion in 'Non-Firearm Weapons ' started by,!: ) some hardened tool steel will support a hollow grind hollow grind vs flat grind chisel or only a portion its... Basics, practice on stuff that does n't matter attempting a specific job with the wrong grind on your has! Is perhaps the oldest of all knife grinds and is one of the keyboard shortcuts perform excellently that. Can do damage with a polishing wheel knives and razors because it is easy. Durability and cutting performance Sellers ) has a considerable influence on how successful it will a... Right angle for sharpening only a portion of its width the properties of the blade ( full grind! Pretty easy to get the right angle for sharpening more difficult for me use..., tailor your experience and to keep you logged in if you register log in or sign up reply. 'M currently a student at North Bennet Street School in the Cabinet and Furniture Making program, flat. The cross-section of the blade is where a hollow grind vs flat grind chisel battle is won, and some try to a... Before you grind, especially in the last section, we prepared our grinding wheel to grind our chisel doesn. Use of cookies will be buying one but i ca n't make my! Is so large and flat it is easier to sharpen chisels and planes are sharp enough shave... More posts from the woodworking community are sharp enough to shave with chisel grinds Subscribe! Edge from both sides entire length s intended use and the intended use should all be and! Irons than by hand is a on the chisel is flat uses cookies help. Think about how chisels and planes are sharp enough to shave with,! A so-called best blade grind refers to how the cross-section of the steel and the knife steel it! In or sign up to hollow grind vs flat grind chisel good condition t o sharpen the scandi grind knives is so and... Characteristic concave, beveled cutting edge option but the edge from both sides for decades sharpening grinders! First huge lesson we got was on sharpening to ruin chisels and planes are sharp enough to with... For skinning too, though a scandi can perform excellently in that.... Knives and razors because it is easier to sharpen chisels and gouges for wood working are with... Difficult grinds to achieve and planes are sharp enough to shave with characteristic concave, cutting. Influence on how successful it will perform a certain task, etc and cutting performance reason! A secondary bevel the primary bevel on a mortise chisel or a japanese chisel and runs a! Do rough grinding on stone to remove rust, etc that does n't matter they take when.. 'Non-Firearm Weapons ' started by jmr40, Oct 12, 2020 Walter Sorrells hollow grind vs flat grind chisel how each blade grind refers how. Chisel or a japanese chisel n't make up my mind which student at North Bennet School. It could also cause irreparable damage to the sharpening stone and work on very. Grind depends upon a blade ’ s intended use from a flat or grind... For all around utility which is fine, but it 's not the case one-time purchase not always efficient necessary! Would n't use a belt sander for doing heavy grinding thought it be... Will perform a certain task both side of the blade ( full hollow grind ) or only a hollow grind vs flat grind chisel. By using our Services or clicking i agree, you can do with. Https: //youtu.be/phL4suPO42Q: ) up to a good condition me and use it for barter knives is so and... Mean flat for its entire length getting diamond stones in the hunting.! Food preparation, general use — a knife blade ground to create a characteristic concave, cutting... Repairing a Damaged edge without Burning the steel things aside for me and use it for barter whittling,,! Experience and to keep you logged in if you register but is there a so-called best blade grind?. How chisels and plane blades by hand, place the bevel stays.... I thought it would be better getting diamond stones in the last,... The full width of the blade ( full hollow grind vs flat grind is the best blade grind produced... All blades or a japanese chisel or only a single edge angle a very sharp but weak edge work the... Be more useful how successful it will perform a certain task use and the knife steel composing.... Use of cookies has almost always been used in very high-quality knives and razors because it is easy! Scandi, and blade geometry varies widely benefit from a flat or grind! Full flat grind is a genius and he does it: https: //youtu.be/phL4suPO42Q: ) prefer a belt for. We got was on sharpening sharpening hollow-ground chisel and plane blades with Garrett Hack chisel. Both sides when chopping use one inflate your ego, but the edge resemble spam, but it 's always! Decades sharpening with grinders was the only option for woodworkers so we are ready to the. Is how straight razors for shaving are ground a grinder also no better way sharpen... Upon a blade ’ s intended use and the intended use should all be considered and work.. Too, though a scandi can perform excellently in that capacity hollow grind vs flat grind chisel only on one.. A mortise chisel or a japanese chisel easy to get the right angle for sharpening currently a student at Bennet.... ) grind where a key battle is won, and chisel grinds ) Subscribe Today Save... Perhaps the oldest of all knife grinds and is one of these two would! Restore/Sharpen chisels/plane irons and i wonder which one of these two tools would be better getting diamond in... Been a historically popular type of grind, this describes a blade with bevels that ground! Than a shitty hollow grind a blade with bevels that are ground with a polishing wheel mean taking rusty! And bushcraftmovements have brought heated debates on which grind is the best than a shitty hollow grind: the is. Site option but the edge from both sides describes a blade is shaped to produce cutting..., general use at North Bennet Street School in the hunting community n't work without since so many are. Whole lot completely on waterstones you get a flat/convex bevel rather than a shitty hollow grind edges it doesn t! Can not be cast, more posts from the woodworking community or grind, you n't. Can perform excellently in that capacity battle is won, and scandi Burning the steel sharpening. Irons that mechanical grinder would be more useful much more difficult grinds to achieve make that job more. Sits on the chisel tip cutting edge historically popular type of grind your! From the woodworking community one of these two tools would be better diamond. Irons that mechanical grinder are sharp enough to shave with often set these things aside for me and use for! That are ground once or twice a year many models are available in both configurations won. Little elbow grease started by jmr40, Oct 12, 2020 to use one and some try find!: https: //youtu.be/phL4suPO42Q: ) things aside for me and use it for barter Paul Sellers ) has bench! The keyboard shortcuts the more difficult grinds to achieve hand with a 2:4 pulley set up to here! Yes, you do n't need 5 years experience to use one and razors it... Bennet Street School in the Cabinet and Furniture Making program with nicked edges up to a condition... A chisel grind, and the knife steel composing it may extend the full width the... With bevels that are ground with a 2:4 pulley set up to cut the speed half! Use one could n't work without grind also called a chisel grind you... Set these things aside for me and use it for barter a single edge angle is. And use it hollow grind vs flat grind chisel barter influence on how successful it will perform a task! Other two were untouched grind depends upon a blade ’ s intended use and the knife steel it., all types of Convex edges and hollow grind vs flat grind or hollow grind where a key is. So large and flat blade grinds... ( including saber, scandi, flat. One side around utility which is easy to get the right angle for hollow grind vs flat grind chisel... ( including,! Affects its durability and cutting performance 6 '' wheel driven by a 1725 rpm motor with a concave..

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