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Hollow grind. What it is: A hollow grind features symmetric, concave surfaces ending in a thin, extremely sharp edge. A hollow grind doesn''t produce a very strong edge, and therefore generally isn''t suitable for sustained use on hard or fibrous materials. ... Most of the hollowground knives produced today have a secondary Vbevel at the edge ...
Apr 29, 2009· Hollow grinding theory Discussion in ''Shop ... Anything less, if you grind to the spine of a knife and carry the hollow tangent to the edge and you''ll grind right through to the other side. To work correctly assumes a blade thickness of .187, a width of ~ .920, using a 10" diameter wheel and a finish ground edge thickness of ~ .014.
Other types of sharpening jigs may provide better maneuverability but all will keep the blade at a restricted motion. Professional knife makers can grind steel blades without the help of a hollow grinding jig and still achieve their desired edge. Depending on the preference of workability, hollow grinding jigs can make making knives easier.
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Sharpening a Hollow Ground Knife. Whether you call it a hollow ground or a hollow grind, you can sharpen these knives with ease. A hollow grind is produced when you use a wheel to sharpen the edge of a knife.
Hollow grind — a knife blade which has been ground to create a characteristic concave, beveled cutting edge. This is characteristic of straight razors, used for shaving, and yields a very sharp but weak edge which requires stropping for maintenance.
Jan 21, 2016· In this video knife maker Walter Sorrells explains the difference between various types of knife blade geometries. ... Knife Grinds: Comparing Hollow, Convex, and Flat Grinds ... Knife Grind ...
Oct 01, 2019· The "grind" of a blade refers to the way in which it is cut to prepare it for polishing and sharpening. There are a number of different grind styles, all targeted at the potential application of the knife; a hollow ground blade is one of the most common types.
Mar 25, 2013· I was reading one of my knife making books last night (the razor edge knife sharpening) and it described a device that makes hollow grinds without a belt grinder. Problem is the drawings and text dont really explain how it is operated. Its basically a bench grinder on a plank that has a hinge on it. Does anybody have more information on this ...
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Forging Knives Benchmade Knives Tactical Knives Knife Grinding Jig Knife Grinder Belt Grinder Plans Knife Making Tools Sharpening Tools Grinding Machine pheer grinder,ph 427 x 8 with a 1 hp variable speed motor, fitted with a KMG style hollow grinding jig . with elevator, from jantz .
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Find helpful customer reviews and review ratings for Spyderco Byrd Lightweight Folding Knife Black FRN Handle with SpyderEdge, Hollow Grind, 8Cr13MoV Steel Hawkbill Blade BY22SBK at Read honest and unbiased product reviews from our users.
Straight razors are hollow ground. This grind is used extensively in mass produced knives. 2. Flat ground—The blade tapers all the way from the spine to the edge from both sides. A lot of metal is removed from the blade and is thus more difficult to grind, one factor that limits its commercial use.
A Simple Hollow Grinding Jig: This is a jig I threw together from things in my shop that makes it easy to create hollowground knife bevels. 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...
Mar 28, 2011· In each case a zero grind is superior to a secondary grind. ie a hollow grind all the way to the edge will slice better than a hollow grind + secondary edge bevel, and a full flat grind all the way to the edge will cut better than a ffg with a secondary bevel. Of course, a very thin convex edge will slice better than a thick hollow grind.
This means that many hollow grinds will be very shallow, and indeed on many blades it is difficult for the unpracticed eye to spot a hollow grind. The hollow grind is popular for both production and handmade knives. This grind is easy to achieve on a machine so production costs aren''t prohibitive (at least for this part of the knife).
Aug 09, 2016· If you''re interested in purchasing one of my production models send me an email cumingskaila Thank you for the support!
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May 01, 2018· I can walk up to the grinder with a forged knife and no good reference lines and grind out a FFG just how I want, now, after 100+ knives; but I still use the bubble jig to do swedges. It''s all about surface contact for me to be consistent. That said I don''t do many hollow grinds and agree with Stacy that learning flat is the way to start.
Nov 09, 2017· I started with jigs on about my first 8 knives. I found out real quick how limiting they are and the type of grind you can do. I have literally learned more about grinding free handing my last two knives than I have in the all of my previous 1215 knives. I was trying to step my game up and hollow grind a blade with some recurve in it.
This is what we call a hollow grind. The hollow grind is probably the most common type of blade grind on the market. Not only is it easy for production knife companies to produce, but it offers a thin cutting edge, at the sace of some edge depth. Since the blade gets thicker very quickly as you near the edge of the grind, it tends to lend ...
Grinding a knife is not the same as sharpening or honing it. The difference is that grinding removes large amounts of metal from the knife''s blade, changing the cross section shape. Hollow ground knives are typical for extremely sharp combat blades made for slicing as well as high quality kitchen knives.
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