Coarse is blue, 45 micron / 325 meshFAST: Hardest material, most efficient sharpening abrasive; available in unique interrupted surface and continuous surface
Sharpen your knives, scissors, garden tools, axes, lawnmower blades and more with this convenient, lightweight and portable 4" x 1" Diamond Whetstone™ Sharpener. Size: 9 1/2" open; 5" closed. Folding plastic handles protect sharpener when not in use. Available in Extra-Coarse, Coarse, Fine and Extra-Fine in regular models and in Coarse and Fine in the Hook & Knife Model designed with an added groove for fish hooks. X- Extra -Coarse (Black 60 micron/ 220 mesh); 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.