Spyderco CBN Benchstone Double Sided Sharpener Cubic Boron Nitride

Product Information

Poltava Metallic CBN Stone for Hapstone Edge Pro TSProf Sharpeners HPCBN ***Grits ranging from 800 grit to 8000 grit. Select from the drop down above*** ***ALL grits are JIS. See Table Below*** I'm personally not a fan of reprofiling very wear resistant steels on the sharpmakers diamond or CBN rods, but there are many folks here who have done it and it works for them. Its a very slow process and your angle selection is limited but it can be done. Metallic CBN stones may have tone imperfections. Metallic CBN may become darker over time due to natural metal oxidizing, it does not affect the sharpening.

CBN offers high performance, sharpens any steel, has a low wear rate and little loading, creates no mess and makes no unwanted grooves. The catch is the price – it’s expensive.Please note, images shown on Spyderco.com may be of Production Prototypes. Modification of products, materials, measurements, technical specifications and availability can occur.

CBN is the second hardest thing to diamond and it's not much softer at all,I think the thing to remember here is that the CBN is still going to be a good bit hard then the steel your trying to sharpen and that's what you want.I don't think it's really going to matter witch one you choose but if it were me I'd go with the CBN because if the diamonds are just electroplated onto the rods they will just tear off faster then the CBN is going to wear. The Sharpmaker and Spyderco ceramic bench stones are excellent and I have used them for almost 30 years. Be careful not to press to hard and use too long or you will easily form a tough small burr, then complain it does not work very well on the newest tool steels.

Ceramic sharpening stones

The best way I can describe how the 50 grit Metallic Bonded CBN stone worked is to say that it just cut's threw S110v like it's nothing just plain and simply put it's easier then taking candy from a tied up baby,the grit also produced filing's that looked like long metal hairs that look like they were made by a power tool then a sharpening stone,the rest of the grit's also removed metal very very fast and all I can say is that you can sharpen S110v much much faster then with any other stones that I have tried and the only ones that come close are the Venev Industrial diamond stones and they are slouch either when it comes to sharpening S110v or any steel for that matter.I also stropped the edge with Poltava CBN Paste and I started with 10,7,3,1,.5,.25 Micron and I used Kangaroo leather strop's on my K02 that I made myself. CBN offers excellent performance in sharpening knives of any steel. Due to its high resistance specs, CBN can be used dry without lubricant. This makes CBN the cleanest of the available sharpening stones. How to use Can you use ceramic stones,,,, yes, but they will mainly burnish and not cut the carbides like diamond and CBN. Small tough burrs will be formed too easily with poor apex formation. Art Supplies Artist Paint & Pencils Paint Brushes Craft Tools Stamps & Stencils Cutting Tools & Mats Resin & Accessories Craft Books All Craft Shop Some threads at Spyderco forums are relevant to this discussion. It wasn't talking specifically about super steels as the OP is, but the question was how to incorp the diamond/cbn rods into your sharpening strategy. Linked below are several threads that have interesting info about all this, including comments from Sal Glesser, Cliff Stamp, and others. And Cliff's testing results on CBN. Lot of interesting info in there, for folks trying to understand the various options that you have on Sharpmaker, and how to get the most out of your Sharpmaker.

I have a Nikon microscope with variable power and several eyepieces that gives 10x-80x magnification. This is not the fingernail or finger print test. Pen Making Accessories Bushings Tubes & Refills Drill Bits Clips Tools & Assembly Adhesives Finishing All rights reserved. All product names, art and text herein are the property of Spyderco, Inc. and may not be reproduced in part or whole without the sole written permission of Spyderco, Inc. Kmesharp.com sells diamond "Gold" stones from 50 grit to 1500 grit, then diamond lapping films down to .1 micron, as well as kangaroo leather strops and CBN emulsion down to .1 micron. They are expensive but will do the job.There are several reasons that CBN is worth considering for your next sharpening stone. Most important is that CBN is harder and has greater abrasion, thermal and chemical resistance than either synthetic diamonds (though less so than natural diamonds), silicon carbide, or aluminum oxide. Unlike other bench stones, you can use it dry (without any lubricants). It never requires flattening (though in all fairness neither do diamond stones) and it will sharpen any tool steel, including the S90V produced by Crucible." Sharpening to a burr is counterproductive and works against sharpness. Most ceramic waterstones (1200 grit or below) have no trouble with many common 'supersteels' as the vast steel matrix around the carbides is soft comparatively and thus, easily cut by these ceramics. If you reverse those two categories of stone for each role (shaping vs sharpening), you have made your job much more complicated and involved and in general it will take you much longer and/or require elaborate deburring steps. With something like a simple Naniwa Multistone 1000 : one can literally grind all day with a creamy slurry created by just a few passes of a flattening plate like an Atoma and NEVER actually reach a strong burr or sharp apex.