The KUU Fine (600 grit) Diamond Stone is built for precision finishing, refining your edges after filing and stripping out the micro-burrs that kill performance. It smooths and polishes without over cutting, leaving a clean, consistent edge that grips when you need it and releases when you don’t.

The 600 grit sits in the sweet spot: fine enough to deliver a high-quality finish, but still effective at removing residual imperfections from sharpening. Used correctly, it transforms a good tune into a fast, predictable, confidence-inspiring one.

Constructed with high-quality diamond particulate bonded to a durable backing, it delivers long-lasting performance and consistent results, whether you're tuning in the workshop or on the road. 

Compact at 23mm x 80mm, it fits easily into most edge tools or can be used freehand for quick touch-ups between runs.