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Sharpening on flat stones/strops?

K

knife117

Joined
Jan 30, 2014
Messages
175
I've got a CRK Sebenza Insingo that I want to maintain the convex edge on. Would sharpening by hand on flat stones and strops be the best way to accomplish this?

What are the best stones and strops to use?
 
The tiny bit of convexity on the CR knives' bevels can be maintained (or created) with a back/forth 'scrubbing' motion on a flat hone. I'd recommend a Fine/EF diamond hone for that, if wanting to retain that convex. Stropping on wood, like balsa or basswood for example, will work well with diamond compounds. I recommend diamond for the sake of the steel (S35VN, and S30V on other CR knives) on these knives, to handle the vanadium carbides more easily.

Having said that, you can still maintain the apex of the edge by microbevelling with any means used for any other knife (stones, rods, Sharpmaker/V-crock setups, etc). For light touch-ups, that'd be the easiest way to keep it sharp. Chris Reeve's site actually suggests using the Sharpmaker or Lansky sharpener, which are commonly used for most any knife.


David
 
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In my experience with CR knives the bevels have so little convexity that I don't even know why they call it convex. The steel is also ran on the softer side and tends to do better with coarser edges. I've had good experiences using a Coarse DMT plate and some 1 micron diamond compound.
 
Yeah, JDavis is a really good sharpener. I've watched tons of his videos. Do keep in mind that the blade he was sharpening had been previously profiled and was just "kinda dull". I'm not minimizing his work; just saying that this won't happen with every blade you try, particularly when extremely dull.

The stones he's using are:

1. 8 x 3" DMT Diasharp C and EF
2. Spyderco 8 x 3" Ultrafine, model 306UF
3. Knives Plus pre-loaded strop

The DMTs *do* make fast work of most blades.

Brian.
 
The other thing speeding sharpening in the video is the thin grind of the blade he's honing. The knife looks like a Kershaw OD-1 (the '1775' model# can be seen at about ~10:40 into the video; steel type is 14C28N), and it looks very much like the thin hollow grind of a few Leeks I've got. The thin grind and acute edge profile lend themselves very well to quick sharpening, and even pretty fast re-bevelling, especially on diamond hones.


David
 
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