a variety of knife sharpeners. sharpening stones and devices on a wooden background. grinding stones

abrasive antique background black blade blunt butcher classic cook cooking cut devices domestic dull edge equipment finish grind grinder grinding grindstone hand handle instrument isolated kitchen kitchenware knife metal metallic nobody object polishing preparation professional restaurant rough sharp sharpen sharpened sharpener sharpeners sharpening stainless steel stone stones tool unsharped utensil variety water waterstone whetstone wooden