Description:Chain saw grinding stone is highly strong that can polish quickly and effectively, keeping your chain saw as sharp as ever.Because of the good abrasion and impact resistance of the emery grains on the surface of the chain saw grinding stone, it can be used for a long time.Using premium emery material, the chain saw grinding stones are sturdy and has a long service life.There are 3 sizes (4mm, 4.8mm, 5.5mm) for you to choose from, and their length is 45mm, shank diameter is 3mm. Grinding head diameter of 4mm is 18.5mm long, and diameter of 4.8mm, 5.5mm is 22mm long.You can use this chain saw grinding stones for polishing chainsaw, jade, metal, carving stone mold, etc.Item Name: Chain Saw Grinding StonesMaterial: EmeryColor: Golden, SilverShank Type: Round ShankSpecifications: 4mm, 4.8mm, 5.5mmFeatures: Fast Grinding, High Hardness, Wear ResistantSize Details: Grinding Head Diameter: 4mm/0.16", 4.8mm/0.19", 5.5mm/0.22" (Approx.)Grinding Head Length: 4mm: 18.5mm/0.73", 4.8mm, 5.5mm: 22mm/0.87" (Approx.)Length: 45mm/1.77" (Approx.)Shank Diameter: 3mm/0.12" (Approx.)Notes:Electric chain saws generally choose a diameter of 4.0mm.Small chain saws generally choose diameter 4.8mm.Large chain saws generally choose a diameter of 5.5mm.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:3 x Chain Saw Grinding Stones