- Fine Grit (600) Diamond Surface (Uninterrupted Diamond Coating)
 - Brass Threaded Insert for Stainless Steel Thumb Screw 
- Ergonomic Plastic Housing
 - Made in the USA! 
Designed for use with the Lansky Controlled Angle Sharpening System. Diamond Coatings are the most abrasive type of sharpener; they're ideal for modern, wear resistant tool steels.The fine 600 grit diamond hone is perfect for touching up and polishing an already sharpen edge.