Naniwa Chocera Pro Stone, P304, grit: 400

I've purchased other Naniwa Chosera Pro stones previously, and have been very happy with them, something which is really apparent when compared with other, lower quality stones. I was therefore expecting the 400 stone to be good, and I can confirm that it is. A friend gave me a good quality carbon knife to sharpen. t had become very dull due to frequent use of a steel. The 400 took no time in creating a new edge with which to work with. This stone comes highly recommended for a blade which is very dull. The change in sound and feel as the new edge is created is very noticeable, making it easy to know when the stone has done its job, and when it is time to move onto a higher grit stone.