The Chosera stones are markedly harder than the Super Stones. Naniwa designed these stones for professionals who put the highest daily demands on their knives. Overall, these stones are best for those who don't have a lot of time to spend and need to quickly and cleanly sharpen their knives. Every Chosera sharpening stone is delivered with a special Nagura stone (67 x 49 x 25 mm) to put a fine sharpening paste on the surface of the Chosera stones during use. This 2k stone is fine enough for many applications in the kitchen. This stone will leave your knife with an edge better than most factory edges. Naniwa claims these are splash-and-go stones, but users say that soaking for 15 minutes really brings out the best qualities of the sharpening matrix. These stones measure 210mm x 70mm x 25mm.
An oddball in the lineup,itís hard to choose this over the 3k as theyíre pretty much equivalent. That said,itís really a great stone -- great feedback,great start to a session -- marries well with the other stones in the line.