DMT Dia-Sharp Diamond Sharpening Stone 3-Pack: Credit Card Size Coarse, Fine & Extra-Fine

Portable sharpening power you can carry

Meet the DMT Dia-Sharp Diamond Sharpening Stone 3-Pack, a credit card–sized kit designed for everyday tasks. Each stone uses a distinct grit: coarse for restoring dull edges, fine for honing toward a sharp edge, and extra-fine for polishing and refinement. The set arrives in color-coded vinyl carry cases for quick recognition and tidy organization. Measuring 3.25 inches by 2 inches by 0.05 inches, these stones slide into a pocket or wallet, making on-the-go sharpening a routine possibility.

Three stones, one versatile system

The coarse stone (45 micron / 325 mesh) quickly brings a neglected edge back to life. The fine stone (25 micron / 600 mesh) hones to a cleaner, more precise edge. The extra-fine stone (9 micron / 1200 mesh) polishes and refines the edge after sharpening with a coarser diamond. The dry or water sharpening option keeps your workspace clean and flexible.

• Fast, efficient sharpening with a monocrystalline diamond surface for smooth, effective cuts
• No oils required; sharpen dry or with water for a clean setup
• Durable construction designed for years of dependable performance
• Color-coded carry case protects and organizes each stone for easy access

Real-world uses and practical benefits

This kit is ideal for pocket-ready touch-ups between tasks. Woodworkers, chefs, hobbyists, and professionals who value dependable edge maintenance will appreciate the three-step approach: restore, sharpen, and polish. It pairs well with kitchen blades, carving tools, small chisels, and everyday trade tools.

• Edge restoration with the coarse stone when a blade loses bite
• Honing with the fine stone to approach a razor-like edge
• Polishing with the extra-fine stone for a smooth finish and refreshed life of the edge

Made in the USA, Dia-Sharp is known for precision and longevity. The 3-piece kit is designed to be portable and ready for duty, without the mess of oils or complicated setups. Whether you’re a professional sharpening routine or a dedicated hobbyist, this kit offers a straightforward path to steady, repeatable results.