Grit
Sharpening tools use abrasives to remove small amounts of metal from the blade to create a fresh, sharp edge. Abrasives come in various grits, ranging from coarse to fine.
Coarse grit (200-400): Used for repairing damaged edges, removing nicks, and re-profiling the blade. Think of it like sanding down rough wood with sandpaper.
Medium grit (600-1000): Refines the edge after the initial shaping and removes the scratches left by the coarse grit.
Fine grit (1000-8000): The final stage of sharpening, where the edge is honed to a razor-sharp finish. Higher grits polish the blade and create a smooth, refined edge.
If your blade is chipped or damaged, you’ll need to use coarse abrasives to reshape the edge, removing more material to restore the blade’s original profile. A heavily damaged blade might require a very coarse grit to re-establish the edge geometry, while finer abrasives work well for touch-ups or maintenance on an already sharp blade.