Lansky Sharpeners Medium Diamond Hone. This knife sharpener has a diamond grit surface for fast and effective knife sharpening. Ideal for kitchen the shop or outdoor use the Lansky Diamond Hone Sharpener is a quick easy and effective way to keep your knife blades sharp. Features of Lansky Diamond Sharpener Stone: Coarse Diamond Grit sharpening surface Indented hand grips Works with Lansky Sharpening System Package Contents: Lansky Diamond Hone Knife Sharpeners Lansky Sharpeners LDHMD: Medium Diamond Hone