Abrasive discs for paring cattle feet with a 115 mm (4½ in) angle grinder, for light trimming and for preparing the sole before fitting a block. They don't need sharpening; swap them when they wear.
Only use a grinder on feet if you're trained in hoof trimming. Keep both hands on the grinder, restrain the foot well, and wear cut-resistant gloves and eye and face protection.
