Repeat until all are the same size, then sharpen the saw chain on the other side. Guide the file by applying even pressure, keeping the file at 90 degrees to the guide rail and stroking it in a ...

Chainsaw chains don't last forever, and you can only sharpen them about 10 times or so before you'll have to replace the entire chain. With the extra power of rotary tools like a Dremel ...

you can buy a $60 kit that's compatible with most major-brand chain saws and lets you sharpen the saw yourself in seconds. Sold at Home Depot, Sears, and other retailers, Oregon's PowerSharp comes ...