What edge angle for my M4 Contego?

Joined
Jun 13, 2007
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Mosseri had a great idea asking what his edge angle should be for his D2 knife.

Since I'm going to be reprofiling my 810 soon in CPM M4 I'd like a recommendation on angle. I'm pretty easy on my nice knives. I'll be cutting a little cardboard (yes, I know), and random edc stuff. Generally I stay away from zip ties, anything that may have a staple or nail and very abrasive things, well, other than the light cardboard here or there.

Max sharpness is priority.

Thanks
 
M4 is good stuff, go low. I have a M4 mule around 13 per side with a slightly steeper microbevel.

M4 is perfectly paired with spyderco UF ceramic for finishing and is what I use to apply the microbevel. Gets unbelievably sharp that way.
 
If you are going to be light on your blade and maximum sharpness is a priority, then lower is generally better. I have the Forum Rift in CPM M4 down around 10deg/side. I have cut cardboard with it (not the thick, double ply stuff tho) and it rolls vs. chips. If I ever have issues, I can always run a microbevel.
 
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