Mirror edged knife blade

[BPalv]

I am currently grinding with the SG-250 or CBN wheels.  I would like the ability to put a mirrored edge on some knives (Shuns, Global..etc).  What is the most efficient way to go about that?  Would the 1200 diamond or 4000 water stone work better or something else all together?
Thanks,
Al

[Herman Trivilino]

I don't have any experience with CBN, but you can use the the SG-250 to first establish the edge at the desired bevel angle. Then, use the fine side of the stone grader. Apply a lot of pressure for a long time. Then grind the edge, after which spend a lot of time on the honing wheel. I have looked at these surfaces with a dissecting microscope and fine scratches still appear, but the surface does have a mirror finish.
 

[John Hancock Sr]

If you are after a mirror edge then you will need to be at about 5,000 + and depending on your eyesight maybe over 10,000. So the SJ or equivalent should do the job ensuring that at each stage the scratches are removed from the previous stage. As you change wheels you need to compensate for the differences in diameter, however slight. I found that I had to change the micro adjust between the DF and DE since the DE was very slightly larger and I was running up the bevel.

[BPalv]

I have been using a 3 to 6 micron diamond paste and haven't been able to match Vadim's numbers when honing on a paper wheel.  On the Wusthof I just sharpened he says to make 2 passes at +2 to remove the burr using a paper wheel. it was taking 6 to 10 passes to remove the burr.  So I just ordered new 3 to 6 micron paste from Tech Diamond... not only did I achieve the results I was attempting to sharpen the knife to, the paste put a mirror edge on when using it the paper wheel! Good product.
Problem solved.

[John Hancock Sr]

So I just ordered new 3 to 6 micron paste from Tech Diamond

Unsurprising that quality materials produce a better result!