DMT Diafold Extra Fine DMT. This Knife Sharpener from the knife craftsmen at DMT features an extra fine grit with 1200 mesh and clear folding handle doubles as sheath for this pocket size 4 1/2" closed diamond whetstone. Don't go hunting without the DMT Diafold Sharpener Extra Fine Knife Sharpener. Specifications for DMT Diafold Sharpener Extra Fine: Manufacturer: DMT Closed Length: 4.5 in Features of DMT Diafold Sharpener Extra Fine Knife Sharpener: Extra fine grit 1200 mesh Clear folding handle doubles as sheath for this pocket size 4 1/2" closed diamond whetstone Less than 1" wide Suitable for most any sharpening need Portable enough to take anywhere Hang packaged Package Contents: DMT Diafold Sharpener Extra Fine DMT DMTFWE: Diafold Extra Fine