Pietra per affilare lama curva NANIWA Gouken #3000 Whetstone QA-0362 F/S wTrack#
Sharpness excellent sharpening of curves, such as gardening knives, grafting knife, woodworking chisels, can have surfaces of convex and concave grinding wheel by various curved blade to sharpen pruning shears & peeling knife & florist knife.