A hollow grind is a way to grind your blade so that the bevels curve inward (concave) to meet at a point. This makes for an extremely sharp knife, but very fragile edge at the same time. It's a difficult grind to achieve, even with the right tools and as such, you won't come across a hollow grind too often in custom knives.

This will be adjusted in the final edge grinding after HT. The final cross section should be a radius leading to a flat that drops at an angle to the edge. For a larger hollow grind,you will need 14" and 16" wheels. The old Sheffield grinders used stone wheels up to 60" to get their hollows in.

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For the purpose of this online guide, we are going to discuss how to grind flat, hollow, and full-flat bevels. Variations of the above can be attempted after the basics are mastered. When using a belt grinder, always try to do the majority of rough grinding with a coarse grit belt. Coarse grit belts like 36-gri

grind the bevel length to about one-and-a-half times the thickness of tool. It so happens this bevel length will equal about 20° (actually 18.4°) on a tool of any thickness. The result is a tool with an included angle of about 40°. Sharpening There are three common ways to sharpen a skew chisel: hollow grind, convex grind, and flat grind ...

Hi sharp markers. I have a hell of a time keeping a decent hollow grind on my hunting knives. Any tips? Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcuts. Search within r/sharpening. r/sharpening. Log In Sign Up. User account menu. Found the internet! 3.

Maybe someone with some experience can jump in here, but I think it would be very hard to grind a hollow bladed knife with a file. You would have to be grinding a knife with absolutely no belly, like a seax or something. Then there is the issue of where the grind would stop. If you were using a half-round file to do it, you'd be moving the file ...

The hollow grind, which pairs a triple chip tooth with a raker tooth that's ground to a concave profile, produces crisp clean cuts in melamine and other coated boards, without the need for scoring. The negative hook angle Hollow Ground saw blade is particularly suitable for vertical panel saws (Holz-Her, Striebig, etc.) and horizontal sliding ...

Hollow & Flat Grinding Illustration by James Provost If you sharpen a chisel against the edge of a rotating wheel on a bench grinder, the resulting surface will take on a …

This produces a hollow grind which is much less hollow than smaller diameter wheels. I do believe that much of today's thinking about hollow grinding is leftover from the small diameter dry grinding days decades ago. ... I believe that if a sharpener used these two techniques, the need to use bench stones would be minimal. Combined with ...

In this video Zac shows and talks about "How To Hollow Grind like a Pro". He explained techniques he uses to grind hunting knives and Loveless style Fighters. Zac uses a KMG 2"x72" belt grinder with 5" and 10" wheel attachments as well as a 50 grit abrasive belt.

Techniques and Tips ; Hollow & Flat Grinding; Hollow & Flat Grinding. Author: Carl Duguay. Illustration: James Provost. Published: February March 2008. The method you choose to sharpen an edge tool, such as a plane iron or chisel, will result in either a hollow ground or flat tool face.

5 Tips for Grinding Better Bevels on Your Knives - Grind like a Pro! Here's a few things I've learned over the years that have really helped me get better bevels on my blades.Subscribe to Simple Little Life: https://

Grinding Tips. Grinding with Speed, Power ... What grind lines do you have a problem with, the plunges, the grind line along the top of a partial height flat or hollow grind, or both? It is an enormous help to have strong, adjustable light on both sides of your grinder. I use goose-neck lamps.

Jan 24, 2003. Messages. 2,760. Feb 27, 2005. #7. Hollow grinding on a regular grinding wheel is much more dangerous than a belt grinder. What you gents have said about it is absolutely true. I have done a lot of hard steel wheel grinding and it's a nervous endeavour when the grinding stone wheel is biting into a large surface.

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The purpose for the hollow grind (in my opinion) is to faculty the resharpening where you only have a small amount of metal to remove in order to get the tip sharp again. Having an 8" grinder should not make much of a difference.-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood.

The grind on a blade lends itself towards different advantages and disadvantages. Some are stronger, others are sharper, and some try to find a balance of both. Grinds: Flat, Hollow, Sabre, Chisel, Convex, American Tanto Dual, and Scandi.

Based on sparse images of grinding in the medieval period in addition to a few images of renaissance era grinding and so forth, as well as testing myself on how to grind a long blade only on my belt grinders wheel section I will illustrate my own theory on how a sword would be grinded, whether diamond cross-section or hollow-grinded.

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Hollow Grinding. A concave bevel on a chisel, gouge, or knife. Horned Dado link. This is caused by the outside blades of a stacked dado head cutting deeper than the chipper blades. Impact Driver. Cordless impact drivers are replacing drills to drive screws in wood, they feature both bit rotation and concussive blows to power-drive the screws. ...

Hollow grinding tips and techniques Bob Van Dyke heads to the grinder to demonstrate how he adds a hollow grind to his blades and how he keeps from burning the blade in the process. By Bob Van Dyke Oct 25, 2021. Sign up for eletters today and get the latest techniques and how-to from Fine Woodworking, plus special offers.

This shows one way to hollow grind a knife. Hopefully it will offer you some tips to help with your grinding.

The hollow grind allows me to repeat the process over and over, and know that I am sending out tools that are working at the highest standards. That said, if you don't have a grinder, or feel intimidated by the grinding set up and potential risk of overheating the blade, you can get great results from freehand sharpening the exterior bevel on ...

This has changed over time with different sharpening techniques, and the generally accepted best grind for outdoor knives is a flat grind or a slight convex grind. Knives that are made for hunters as dedicated skinner or game dressing knives will often feature a hollow ground bevel because the knife will have superior sharpness for field ...

I prefer flat grinding for hunting knives, even though hollow grinding is more popular. My opinion is that hollow grinding is necessary when using 1/4-inch-thick stock. The way I do things isn't necessarily what anyone else should do. I won't defend my ideas or methods except to say, "That's just the way I do it."

The smaller the wheel, obviously the smaller the "hollow". The most common size wheel I have seen over the years is a 10". Personally, when I do produce a blade with a hollow grind, I will most often use a 10" wheel, but because I demand that the grind be "right", and not one of those aforementioned perversions, the size wheel is determined by ...

Back to Sharpening Techniques. The Ultimate Grinding-Sharpening Set Up? By way of introduction, I work with hollow grinds. I believe that the way to the quickest, most efficiently created, and sharpest edge is via a hollow grind that leaves the minimum amount of steel to hone. Honing on a minimum amount of steel is also more friendly to the honing media - less effort is required as there is ...

5 Tips for Grinding Better Bevels on Your Knives - Grind like a Pro! Here's a few things I've learned over the years that have really helped me get better bevels on my blades.Subscribe to Simple Little Life: https://

Double-bevel grind. 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. What it's good for: Whittling, woodworking, food preparation, general use. How to sharpen it: As with a V-bevel, a double-bevel grind can be …