Tri-Angle Sharpmaker® accessory stones are abrasive rods designed to work with our Tri-Angle Sharpmaker system. They include fine and medium-grit stones that can be used to replace broken or lost original Sharpmaker stones, as well as other grits that expand the system’s functionality and versatility. Diamond and Cubic Boron Nitride (CBN) stones feature coarser abrasive for quick steel removal, while the Ultra Fine ceramic stone creates a more polished edge. Accessory stones are sold individually or in pairs as indicated.