Coarse is blue, 45 micron/ 325 meshFAST: Hardest material, most efficient sharpening abrasive; available in unique interrupted surface and continuous surface
Multi-use Diafold® Diamond Chain Saw Files for quick and easy chainsaw maintenance as well as the right honing steel for sharpening any curved edge. Convenient folding plastic handles protect the diamond surface while not in use. Available in 5/32", 6/32" and 7/32" in Coarse Diamond. Size: 9-1/2" open; 4" closed. C-Coarse (Blue 45 micron/ 325 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.