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Discussion Starter · #1 ·
Just bought a new Benchmade Contego CPM-M4 steel, RC 62-64. I emailed Benchmade to inquire about the angle their blades are ground to and was told (prompt reply) they use 15 - 17 degrees (30-34 inclusive). I assume that the 30 degree setting on my Spyderco Sharpmaker will do the trick if I ever need to touch up the blade (RC 62 - 64 !!!). What do any of you Benchmade owners use?
 

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Cardboard sharpening wheel on my bench grinder. I rarely spend more than a minute using it.

Thanks, Dinny
 

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A Benchmade has been my everyday carry for about 20 years.
I've actually never looked at recommended sharpening angles, but I've been puttin a razor edge on all my knives the same way for about 60 years.
Benchmade makes a helluva knife.
 

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Mine is starting to look like an ice pick after 20+ years of EDC. I've used all kinds of things to sharpen mine, from arkansas stones, to diamond, to a work sharp system. All gave my blade a decent utility edge, but boxes are murder on an edge. I may have to return to Benchmade for a new blade, but will have to go through a dealer as it's an auto and they don't ship to private citizens.
 

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Mine is starting to look like an ice pick after 20+ years of EDC. I've used all kinds of things to sharpen mine, from arkansas stones, to diamond, to a work sharp system. All gave my blade a decent utility edge, but boxes are murder on an edge. I may have to return to Benchmade for a new blade, but will have to go through a dealer as it's an auto and they don't ship to private citizens.
ever use the cardboard like a razor strap to reset the edge. New brown cardboard works great.
 

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ever use the cardboard like a razor strap to reset the edge. New brown cardboard works great.
No, not cardboard, may have to give that a try next time I'm in the warehouse.
 

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Im one that can put a knife to a stone and it will come out duller then when i started. Anymore i just use a worksharp. It puts a shaving edge on about any knife in a few minutes.
 
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Discussion Starter · #13 ·
I have that same set up ( Contego folder in M4 and Spyderco Triangle Sharpmaker) DO NOT use the 30* back bevel to sharpen !! I always use the 40* edge which gives a 20* angle (geometry: bisect a 40* angle = 20*) :). I believe Benchmade has come out with a 15 - 17 degree sharpener. I have never understood why Benchmade doesn't make a quality sharpener.
 
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