Features1[Easy Installation] The grinding head of electric saw sharpener is easy to install and has good heat dissipation 2[High Efficiency] Can be applied to chainless polishing agent to improve efficiency.Including 8 replacement finishing stones 3[ Ensure Sharpness ] When used with an electric hand held grinder to ensure sharpness, your saw chain is easily grind 4[Long Life] The titanium plating process is adopted, which means that the service life of these bits is longer than that of other bits 5[Easy Care] Leaves an cutting edge and can be easily combed on most electric chain grinders. It is very suitable for grinding chain sawtoothSpecificationItem Type: Electric Saw SharpenerMaterial: Titanium Plated EmeryTool Handle: Approx. 3mm / 0.12inScope of Application: These Electric Saw Grinding Heads Are Suitable for Metal Polishing, Such As Electric Saw, Wood, Mold, Steel, Etc.Weight: Approx. 26-34-41g / 1-1.2-1.4ozPackage List8 x Electric Saw Sharpener