Same as the Sapphire stone, my fine stone gave a better finish until I flattened this one with a concrete block and finished it with a Silicon Carbide stone.

That said, if you want a mirror polish on a tool's edge, finish it with this one and the Super Sapphire (after dressing them) and you'll be amazed. The only way I can think to get a better polish would be to make a maple block to fit this kit and use a .5 micron diamond paste, which would be entirely unnecessary (and completely awesome)!

White as porcelain and as hard and smooth as anything, Lansky's Ultra Fine sharpening stone is the one to turn to when you want to put the ultimate polish on your edge. This stone hardly removes any metal, so it's only useful if your knife is already sharp. It's for use after the pink fine stone, or the blue sapphire finishing stone. Frankly, most of the time you don't need this stone. Both the pink "fine" stone and the blue sapphire stone do an acceptable job of making your blade shaving sharp. However, if you want to really get a razor edge, this is the one