Manual chain grinding tool, optimized shape, more precise guide, help to improve the work efficiency of the chain saw. Optimized shape for more precise guidance, helps to improve the work efficiency of the chainsaw. Casting any chain quickly and easily can make your saw chain sharper and easier to use. Just manually rub back and forth and your chain will be smooth and shiny again. A handy tool for sharpening teeth and measuring depth in one step. Suitable for all sizes of chainsaw. It is a fine quality chain grinding tool, optimized in shape for more precise guiding which helps to improve the work efficiency of the chainsaw. Both sides of the whetstone are easy to operate, allowing the user to operate the chainsaw directly without accidentally injuring their finger. Sharpen any chain quickly and easily, making your saw chain sharper and easier to use. You can try to do that. Features: hand chain sharpening tool, can easily and quickly sharpen any chain. Optimized shape for more precise guidance, helps to improve the work efficiency of the chainsaw. Convenient tool for quickly sharpening teeth and depth gauge in one step. Both sides of the whetstone are easy to operate, allowing the user to operate the chainsaw directly without accidentally injuring their finger. Sharpen any chain quickly and easily, making your saw chain sharper and easier to use. Just manually rub it backwards to make your saw chain smooth and shiny. Suitable for all sizes of chainsaw. Budget: Material: bearing steel. Colour: Orange File Diameter: 4.0mm Item Dimensions: 32 x 6.85 x 2.53cm Package Contents: 1 x Chainsaw Chain Sharpener.