Sharpening stone
STONE USED TO SHARPEN THE EDGES OF STEEL TOOLS AND IMPLEMENTS THROUGH GRINDING AND HONING
Whetstone (tool); Waterstone; Oil stone; Japanese waterstones; Stoning (metalworking); Whet; De-burring stone; De-Burring Stone; Whet-stone; Levelling stone; Wetstone; Wet stone; Rubstone; India stone; Belgian Blue Whetstone; Whetting stone; Water stone
Sharpening stones, or whetstones, are used to sharpen the edges of steel tools such as knives through grinding and honing.