Features: 1、Wide Uses: The chainsaw sharpener is 87mm long and has an inner diameter of 35x9.5mm and suitable for most kinds of chain saws and electric saws. 2、Simple to Use: Just attach the clamp to the rod, position the pawl on the tooth, insert the burr into the guide bush, turn the handle to use. 3、Efficient: Chainsaw sharpening tool allows your chain to sharpen in a short time. Keep the chain and rails oiled to reduce friction and extend life. 4、Sturdy Material: The chain sharpener is made of aluminum alloy material, high strength, wear resistant, strong and durable, not easy to damage. 5、Portable: The hand crank chainsaw sharpener is lightweight and easy to carry, suitable for outdoor use and protects your hands from injury. Specification:Item Type: Chainsaw SharpenerMaterial: Aluminum Alloy, Tungsten SteelApplicable Machines: For most kinds of chain saws and electric saws.Length: Approx. 87mm / 3.43inInner Diameter: Approx. 35x9.5mm 1.38x0.37inWeight: Approx. 231g/8.15oz