The Spyderco Webfoot CBN Sharpening Stone (brand part no. 308CBN) is a uniquely different approach to sharpening from Spyderco that can be used anywhere, set up in seconds, without oil, water, electricity, or complicated clamps or fixtures. Made from a single piece of carbon steel coated in Cubic Boron Nitride (CBN), a superabrasive second in hardness only to diamond, the Webfoot’s design lets you rest its wide end on a flat surface and rock it side to side to find the perfect 40-degree angle for utility knife edges, or use the included ABS plastic base to reduce that to 30 degrees for thinner, high-performance blades. Laid on its side, it offers a 12.5-degree angle for scissors and shears.

Key Specifications

• CBN-coated carbon steel construction gives the Webfoot a fast-cutting superabrasive edge.
• Self-angling design sets a 40-degree edge angle by resting and rocking the stone on a flat surface.
• Included ABS plastic base reduces the angle to 30 degrees for thinner, high-performance blades.
• 12.5-degree scissor setting extends the tool’s use beyond knives.
• Over 15 square inches of abrasive surface handles a wide variety of edged and pointed tools, including serrations.
• Suede carrying pouch doubles as a non-slip work surface.

Frequently Asked Questions

Do I need a clamp or fixture to use the Webfoot? No, it sets its own angle by resting on a flat surface and rocking it side to side.

Can it sharpen serrated blades? Yes, its abrasive surfaces are shaped to handle a wide variety of edged and pointed tools, including serrations.

Browse our full selection of knife accessories for more options like this one.

Buy the Spyderco Webfoot CBN Sharpening Stone

For sharpening on the go with no clamps or fixtures, the Webfoot is a genuinely different take on portable stones. Order it from our Lubbock, Texas shop for fast, insured shipping right to your door.