The SP-650 Stone Grader is simple to use. For finer sharpening, use the fine side of the stone grader to smooth the surface of your grindstone, effectively raising its grit to approximately 1000. To maintain and reactivate the grit for coarser sharpening, use the coarse side to roughen the grindstone’s surface, returning it to a 220 grit.

By regularly using the SP-650 Stone Grader, you can keep your grindstone in optimal condition and extend its life. This tool is essential for anyone looking to maximize the versatility and performance of their Tormek sharpening system.