Even the highest quality blades will dull with use & require more effort when cutting. The blades & edges on your garden machinery & tools need maintenance. Anysharp Edge sharpens almost any garden tool, blade or kitchen knife (even serrated blades), & does it easily in seconds. Bring your whole tool station back to life & sharpen. Any Sharp Edge is very safe, because hands are always protected from the blade. The Power Guide thumb rest means that you can guide & regulate the pressure you apply for perfect results every time. Any Sharp makes the world’s best knife, blade & tool sharpeners. With patented technology & super-hard tungsten carbide tooling, the Any Sharp Edge is simply the most effective & versatile sharpener you will ever use. 100% satisfaction guaranteed