Description: Package IncludesThe package includes 3 diamond chain saw sharpeners. The length of each grinding head is 4.5cm/1.77inch.Material: Electric chain saw sharpeners made of emery plating, surface anti rust, wear resistance and high hardness, these are specially designed for chain saw and steel, with long service life.Easy to Use: These grinding heads are specially designed for electric chain saws. polished without disassembling the chain, reducing the number of replacements and improving work efficiency.Three Blade DiametersThe three grinding heads are adapted to different blade diameters. The three grinding heads are suitable for blade diameters of 4.0mm, 4.8mm and 5.5mm respectively.. Can better adapt to your device.Application: Chain Saw sharpeners are wide applicated in metal polishing like chain saw, jade, wood, model, steel, etc. Specification: Material:Carborundum Size Chart: 4.5cm/1.77inch Package Includes: 3 Grinding Heads Note: Please allow slightly errors due to manual measurement and different monitors.