Precise maintenance-Made of high quality alloy materials, durable. Every time you grind a tooth, all you have to do is pull on the chain. Precise sharpening can ensure that every tooth is repaired! PRECISE POSITIONING: The pawl acts as a stop to ensure accurate and repeatable tooth positioning. Intimate And Perfect 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. Precise Positioning-The pawl acts as a stop to ensure accurate and repeatable tooth positioning. This lightweight chain saw sharpener can be applied to all kinds of chains, and most of the chains on the market can be sharpened. Perfect choice- Standard 30 sharpened front angle, anodized aluminum bracket with removable crank and a set of guide bushes for all chainsaws. Look Like New-Use the chain saw chain grinding fixture to make your chain saw as sharp as new, making your work more time-saving and labor-saving! Light weight, easy to carry, allowing you to work outdoors faster. Specification Product Name: Portable Manual Chainsaw Chain Sharpener Product material: aluminum alloy Product category: Chain grinding machine Operating mode: hand crank Product use: sprocket grinding