Coarse is blue, 45 micron / 325 meshFAST: Hardest material, most efficient sharpening abrasive; available in unique interrupted surface and continuous surface
One tool for many tasks - an excellent value for home, shop and recreational use. The Diafold® Serrated Knife Sharpener not only maintains serrated edges, but also serves as a mini-steel and conical file. Size: 1/4" to 1/16" taper. Convenient size: 9 1/2" open. 5" closed. Folding plastic handles protect sharpener when not in use.Available in Coarse, Fine, and Extra-Fine. C-Coarse (Blue 45 micron/ 325 mesh); F-Fine (Red 25 micron / 600 mesh); E-Extra-Fine (Green 9 micron / 1200 mesh).
EASY: Light pressure produces a sharp edge with just a few strokes
CLEAN: Use water for lubrication- no oil, smell or mess
VERSATILE: Hones ALL hard materials: carbide, steel, etc
DURABLE: Starts flat, stays flat - provides years of consistent, reliable use
Made in USA See 'Ships Direct from Manufacturer's link for warranty and return details.