The Credit Card diamond stone is a handy little sharpener, successfully used for years by woodworkers, crafters through to other groups such as fishermen and gardeners. The perfect size of Diamond Stone with some great improvements.
Side One Coarse 50Micron 300 grit Diamond grade
For fast stock removal, Ideal for the preparation of the edge.
Side Two Fine 25Micron or 600 grit Diamond grade
For honing a primary edge.