Precise maintenance - Made from high quality alloy materials, durable. Every time you grind a tooth, you just have to pull the chain. Precise sharpening can ensure that every tooth is repaired! PRECISE POSITIONING: The ratchet acts as a stop to ensure precise and repeatable positioning of the teeth. 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 which can move back and forth, then install it for use. Precise positioning - The ratchet acts as a abutment to ensure precise and repeatable tooth positioning. This lightweight chain saw sharpener can be applied to all kinds of chains, and most chains in the market can be sharpened. Perfect Choice - Standard 30 sharpened front angle, anodized aluminum bracket with detachable crank and a set of guide bushings for all chainsaws. Look Like New-Use the chainsaw chain grinding device to make your chainsaw as sharp as new, making your faster and less laborious work! Lightweight, easy to carry, allowing you to work outdoors faster. Specification Product Name: Portable Manual Chainsaw Chain Sharpener Product Material: Aluminum Alloy Product Category: Chain Grinder Operation Mode: Crank Product Use: Sprocket Grinder p>