The saw chain automatically sharpens while working and saves lots of time.
The Power Sharp
Tower is simply mounted on the bar tip.
Then, for just 4-5 seconds, chain saw runs at full throttle through the device.
After dismantling,the chain is sharp again and ready to continue the work...
Com: 1. you always have your chain brake on until ur in postion ready to cut.
2. you need to buy the bar and chain plus sharpening stone for it to all work.
3. you need to have the chain going before applying pressure and sharpening the chain. 4. only really works as in domestic use and not within the tree trades