Accusharp Diamond Pocket AS. This Knife Sharpener from the knife craftsmen at AccuSharp measures 3" x 1" x 1/4" with dual-sided coarse 320 grit and fine 800 grit and hook groove for all varieties of hooks. Don't sharpen your knife without the Accusharp Diamond Pocket. Features of Accusharp Diamond Pocket Knife Sharpener: Accusharp Diamond Pocket Stone 3" x 1" x 1/4" Dual-sided coarse 320 grit and fine 800 grit Hook groove for all varieties of hooks Black belt pouch Hang packaged Package Contents: Accusharp Diamond Pocket Accusharp AS027C: Diamond Pocket