Spyderco Tri-Angle Stone Ultra Fine Premium Knife Sharpener helps you refine edges with precision. It is ideal for polishing after sharpening on your system. This ultra fine stone uses high alumina ceramic for dependable durability and long service life. The fine grit supports smooth touch-ups on many blade styles, including kitchen and utility knives. Measuring about 7 inches overall, it fits neatly in your sharpening kit. For confident results, pair it with the SC204 Sharpmaker sharpening system to maintain consistent angles. Get a cleaner finish, better cutting control, and a sharper feel with every pass.