Graver Sharpener Crocker Engraving Sharpening Vise Tool Crocker Style Sharpeners are used to hold wood gravers, stone setting gravers and other small tools at a consistent angle against an oil sharpening stone. The base slides back and forth parallel to the stone as the tool point is being sharpened. This tool has an Index adjustment for both angle and pitch. Size: 3.1" x 2.0" x 3.1" ~ 80mm x 50mm x 80mm Weight: 8.75oz ~ 246g.