Quote:
A fine man-made stone used to prepare polishing stones for use. It is rubbed in a circular motion over the wet polishing stones to quickly get the abrasives into a paste consistency to save sharpening time and encourage even wear on stones. Approx. size 7/8" x 7/8" x 3".
I thought there was no prep needed on the Naniwa 12k and that it was ready to go. Am I misunderstanding? Did you mean diligently using Nagura stone on the 12k or on the razor itself as a lower level prep? Also, please define what "diligent use" means to you.