1. This precision chain sharpening system is not only fast, but also accurate. It only takes 3-5 seconds to sharpen your dull chain. 2. Save time and efficiency, making your sharpening work easier. 3. Function: make the saw chain sharper and easier to use 4. Installation: easy to install, just put the chain and saw blade into the chain knife
The Most Important Is: Sharpener should use with PowerSharp Guide Bar and Saw Chain