Diamond or CBN

[Bruceter]

I'm in need of some coarse stones for my Sharpmaker. Looking at getting either the diamond or CBN stones. Does one have an advantage over the other?

TIA

Bruceter

 

[Kels73]

I intend to eventually buy diamond or CBN stones for my Sharpmaker too, so I look forward to the responses you get.

Also, have you searched the "Maintenance, Tinkering and Embellishment" subforum? It has a lot of good information on sharpening equipment.

 

[bodog]

If it's monocrystalline diamond, which I believe the sharpmaker rods are, they should last longer than CBN as a general statement about their lifespan. For the purposes of knife sharpening CBN and synthetic polycrystalline diamonds can be considered generally equal. CBN will cut better longer than monocrystalline diamond.


Some manufacturers produce monocrystalline and polycrystalline diamond blends to capitalize on the strengths of both.

You just have to ask yourself, do you want maximum total life span or total maximum cutting efficiency?


(For coarse rods I'd personally choose the diamonds. For finer grits I'd choose CBN)