No. you don’t really need mirror-polished bevels for utilitarian work. Some are very happy with a 600-grit edge, but I prefer a 1000-grit edge. It seems that whichever knife is in my pocket will be called on to slice open an envelope now and then and it’s particularly satisfying to have that cut be extremely smooth.
For skinning I’ve been told that more obtuse angles will help to avoid accidental cut-throughs – maybe 25 to 28 degrees per side. I’ll polish a 20 dps bevel, then put in a 1000-grit microbevel at maybe 25 dps. For butchering, I stay with 20 dps.
While a 600 to 1000 grit edge will cut meat extremely efficiently, I think a polished bevel with a toothy microbevel will help it to slide thru the meat more easily. Clay Allison had said that a 200 grit microbevel works great.
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