Precise PositioningKeep your chainsaw in tip-top shape with a chain saw sharpening device. Every time you grind a tooth, you just need to pull the chain. Precise sharpening can ensure that every tooth is repaired! Precise positioning: the ratchet serves as a stop to ensure accurate and repeatable tooth positioning. High-Quality Materials This chainsaw sharpener jig is made of high quality alloy materials, durable. Lightweight and easy to carry. just put it in your backpack. The chain saw sharpening tool is easy to use outdoors, protecting your hands from injury. This product sharpens chainsaws without the need for electricity. Convenient & Fast SharpeningThe new chainsaw sharpener provides a simple and fast method of sharpening the saw chain. The chainsaw can make the dull chain clear again in just 3-5 seconds. Use the chain saw chain grinding fixture to make your chain saw as sharp as new, saving-time and labor. Perfect ChoiceStandard 30 sharpened front angle, anodized aluminum fixture with a detachable crank and a set of guide bushings,can be used for all chain saws. a must-have chain saw maintenance sharpener for lumberjacks and landscapers, Garden workers, DIY. Thoughtful Design The chainsaw sharpener is equipped with 2 fixed sharpening holes, one of which can be fixed and the other can be moved back and forth, which is very flexible. If your saw blade has a single hole, you can remove the sliding rivet that can move back and forth and then install it for use.