The 8″ Diamond Tri-Hone, model #500008, is this year’s addition to the line of sharpening tools from Smith’s® , a company that’s been around since 1886. Two Interrupted Surface Diamonds include a Micro-Tool Sharpening Pad for sharpening small edges and tools. The stones include 8″ x 2-1⁄2″ versions of both fine (750-grit) and coarse (325-grit ) diamonds and a natural Arkansas stone. The triangular stone holder has handles on the end for easy stone rotation. Cost is $99.99.