This is a kind of fine quality chain grinding tool, optimized shape for more precise guiding, help improve the efficiency of chainsaw work. Both side of the sharpening stone with handle design, easy to operate, which allows the user to operate directly on the chainsaw, without accidentally hurting the finger. Sharpen any chain quickly and easily, can make your saw chain more keen, easy to use. You can have a try. Features: Manual chain grinding tool, can quickly and easily sharpen any chain. Optimized shape for more precise guiding, help improve the efficiency of chainsaw work. Practical tool for quickly sharpening the teeth and depth gauge in a single step. Both side of the sharpening stone with handle design, easy to operate, which allows the user to operate directly on the chainsaw, without accidentally hurting the finger. Sharpen any chain quickly and easily, can make your saw chain more keen, easy to use. Just rub it back and forth manually to make your chain smooth and shiny again. Suitable for any size of the chainsaw. Specifications: Name: Chainsaw Chain Sharpener Material: bearing steel Color: orange, blue (optional) File diameter: 4.0mm, 4.8mm (optional) Item size: 380 * 60 * 25mm / 14.96 * 2.36 * 0.98in Item weight: 350g / 12.35ounce Package size: 380 * 60 * 25mm / 14.96 * 2.36 * 0.98in Package weight: 350g / 12.35ounce Package List: 1 * Chainsaw Chain Sharpener