Bench Credit Card Size Diamond Sharpening Stones
These compact diamond sharpening stones are the perfect solution when you need a portable sharpening option for knives, axes, pointed tools, and edge tools. Measuring just 2" x 3-1/4", they are small enough to stow almost anywhere while still providing fast, clean, and consistent sharpening performance. Each stone features a continuous diamond surface for smooth, even sharpening every time.
Use them dry or with lubricant. Unlike traditional sharpening stones, they come flat, stay flat over time, and will not dish out, giving you consistent, repeatable results with virtually no maintenance.
Available in Super Fine 1200x, Fine 600x, Medium 400x, Coarse 250x, and Extra Coarse 150x , as well as in several two-stone sets.
These stones feature a proprietary blend of monocrystalline and polycrystalline diamonds. Monocrystalline diamonds are single, solid diamond crystals that are extremely hard, wear slowly, provide an aggressive initial cut, and produce a clean, uniform scratch pattern. Polycrystalline diamonds, by contrast, are composed of multiple microscopic diamond crystals fused together. As they are used, they continually self-fracture, exposing fresh, sharp cutting edges and creating a finer, less aggressive scratch pattern. This unique blend of diamond types results in faster cutting, more consistent performance, and longer abrasive life.
Designed for aggressive material removal and efficient sharpening, these stones deliver reliable results across a wide range of applications. They perform exceptionally well on even the toughest materials, including carbide, ceramic, hardened tool steel, high-speed steel, powdered steels, titanium, and more.
Each stone comes with a vinyl storage pouch. Made in the USA.
Available grits:
Super Fine (SF) – 1200 Grit Used to achieve the ultimate finish. Produces a polished, razor-sharp edge and is ideal for final honing of woodworking tools, knives, and precision edges.
Fine (F) – 600 Grit Best general-purpose grit. Quickly sharpens dull edges while still leaving a smooth, refined finish. Perfect for everyday sharpening tasks.
Medium (M) – 400 Grit Balances fast cutting with a quality finish. Great for reestablishing an edge, removing small nicks, and general sharpening of tools and blades.
Coarse (C) – 250 Grit For rapid metal removal and shaping. Ideal for repairing damaged edges, sharpening garden tools, axes, and deburring.
Extra Coarse (XC) – 150 Grit (Green Handle)Maximum cutting speed for aggressive stock removal. Best for heavy reshaping, edge repair, and initial bevel work.
