durable materials

Sigma Power Ceramic sharpening stones are used for sharpening knives on Hapstone and Edge Pro knife sharpeners

U-fork pivot unit with the 170° rotation

Boride recommends Golden Star series stones as the best choice to work with high carbon steel

convex adapter for hapstone durable materialsConvex Adapter is a tool for sharpening knives with the convex edge using Hapstone modular knife sharpener (R2, V8, M3). The convex angle difference can be set to the desired value. Use the convex adapter instead of stock coupling to connect two parts of the guide rod. Note. For other Hapstone sharpeners (R1, M2, K1, V7, V6), use the Convex Guide Rod instead.