The Stihl® 2-in-1 filing guide simplifies the process of sharpening your saw chain by completing two functions at once-sharpening your saw chain cutters and lowering your depth gauges. The ease and accuracy of this unique accessory makes it the ideal system for maintenance of your Stihl® chainsaw. The system includes two round files, one flat file and comes with a unique file holder and filing guide. The Stihl® 2-in-1 filing guide gets more done with each stroke, so you can spend less time sharpening your saw chain and more time putting your chainsaw to work.