KUU Diamond Stone Coarse 80mm

Compact coarse diamond stone for fast, effective ski and snowboard edge repair and burr removal.

The KUU Diamond Stone Coarse 80mm is a small, high-grip tuning stone designed to quickly clean up damaged or hardened steel along your ski and snowboard edges. Using coarse 325‑mesh diamond abrasive bonded to a steel plate with a resin backing, it bites efficiently into the edge to remove burrs, rock damage and hard spots left after filing. The 23mm x 80mm size fits most KUU edge tools and is easy to use by hand, making it ideal for both home benches and on-hill touch-ups. With a simple wipe-down clean and included sleeve on many versions, it’s a durable, go-to stone for restoring a sharp, consistent edge before you finish with finer grits.

• Coarse 325‑mesh diamond: Aggressive grit levels hardened or burred steel quickly, ideal for initial repair work on damaged edges.
• Compact 23mm x 80mm size: Small format fits most KUU edge guides and sits comfortably in the hand for precise control.
• Durable construction: Diamond particulate is bonded to a steel plate with a resin backer for long-lasting performance.
• Great for on-hill use: Portable size makes it easy to carry for quick edge fixes in the car park or between laps.
• Easy to clean: Wipes clean with a dry cloth so it keeps cutting efficiently over many tuning sessions.
• For skis and snowboards: Designed to work on standard steel edges across alpine skis and snowboards as part of a full tuning progression.