NIUNIU Perfect and Precise Design-The chain saw sharpening kits are designed with 2 holes for fixed sharpening, one hole is fixed, one hole moves back and forth, they can adapt to different types of different hole chains, very flexible.Check in advance your chainsaw blade whether have two holes. If your saw blade is a single hole, you can remove the sliding rivet that can be moved back and forth, then install and use it. EASY TO USE - It is as easy to use as a pencil sharpener; just set the clamp to the rod, position the pawl on the tooth, insert the burr into the guide sleeve, and turn the handle.Use it to precisely sharpen the chain of a chain saw to sharpen the chain and make gardening work smoother. Made of high-quality alloy material, it is durable and more sturdy. Easy to Install - The chain saw sharpening tool is installed in the sharpener and can be installed and used at any time so that your chain can be sharpened in a short time. Keep oil on the chain and rails to reduce friction and extend service life.Equipped with an extra whetstone for replacement.Convenient for timely replacement and maintenance. Delivery Quantity: 1pc, Package Contents: Only the above package contents, excluding other products. Dimensions: 65.32x75.06x98.09mm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: yellow (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)