Coarse is blue, 45 micron / 325 meshFAST: Hardest material, most efficient sharpening abrasive; available in unique interrupted surface and continuous surface
For a performance edge on the slopes, whether skiing or snowboarding, rely on DMT®'s Mini Diamond Whetstone™ Sharpener. With just a few strokes of the diamond surface, you'll achieve clean and crisp edges. Compact, easy-to-carry at only 70mm x25mm x 5mm. Available separately or in a kit of Extra-Coarse, Coarse, Fine diamond grits. XX-Extra Extra-Coarse (Silver - 120 micron / 120 mesh) X-Extra Coarse (Black - 60 micron / 220 mesh), C-Coarse (Blue 45 micron/ 325 mesh); F-Fine (Red 25 micron / 600 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.