Quick results: The chainsaw bit is distributed with complete and even particles. These files can sharpen the chain stably and effectively. It only takes a few minutes to rid of the troublesome hand sharpening and for all.Durable: The hardest titanium wheel we manufacture uses titanium electroplating process, which means that the life of this drill bit is 20% than that of other non-titanium electroplating.Easy to use: These drill bits are specially designed for electric saw sharpeners. It can be replaced in just 2 steps. In this way, this titanium-coated file has a harder and reduces the number of replacements.Applicable: 3/16 inch wheels, suitable for 0.325 inch chains, 3/8 chainsaw chains.Note: There may be many black spots on the surface of the wheel. It is not that the titanium coating falls off, that the titanium and silicon carbide are mixed. Better use.size:4.8mmMaterial:Emerycolour:GoldenPackage Contents:8 * Chainsaw Sharpener Stone