Coarse for dull and damaged knives.Fine for polishing the knife and for quick touch-ups for an already sharp knife.
Please Pull the Knife through the Knife-sharpener Only,not Push it,to Protect the Knife and the Knife-sharpener.
Patented Edge Grip feature allows sharpening on the edge of the table or counter top- prevents the tip of larger knives from dragging over the surface of the counter.