Now we know what happens when your hoof knife gets blunt, don´t we. Why not invest in a stone that is designed for the job?
This sharpening stone is medium grit, rounded on one side, flat on the other. The rounded side suits the curved blade of a hoof knife an the edges for sharpening the hook part.
Stone is 125mm long x 30mm wide x 6mm thick.
Use with water, detergent or spit!