What are the three stones called in the three stone knife sharpener?

The three stones in a three stone knife sharpener are referred to as Coarse, Medium, and Fine. Each stone serves a distinct purpose in the knife sharpening process, allowing for a step-by-step refinement of the blade's edge.

The coarse stone is used for the initial sharpening, effectively removing material to reshape and sharpen the blade. It is particularly effective for repairing and honing very dull knives. The medium stone follows, refining the edge further by smoothing out the scratches left by the coarse stone, leading to a sharper and more polished blade. Finally, the fine stone is utilized for honing, taking the edge to its sharpest point and polishing it to achieve a smooth finish.

This structured approach ensures that the knife receives a comprehensive sharpening treatment, enhancing its performance and longevity. The terminology used in the correct answer accurately reflects the progression of sharpening stages, making it the appropriate choice.