sharp pebble puck/disk - axe/hatchet large sharpening stone- whetstone blade & tool sharpener- dual grit multipurpose waterstone sharpener with bamboo box sharp pebble this pocket-sized, circular-shaped, dual-grit, multi-purpose sharpener, commonly known as “sharpening stone”, is ideal for sharpening camping axes, gardening axes, lawnmower blades, machetes, hatchets, ax blades, fixed blades, outdoor knife blades, spades, shovels, trowels and a variety of other camping, cutting, gardening, and chopping tools. its easy-to-grab, circular shape ensures safe, easy sharpening of the tools, and the dual-grit design offers a coarse side for fast cutting and sharpening and a fine side for final edge polishing and finishing.