High-quality materials: Saw chain template made of high-quality diamond sand, The even and homogeneous distribution of the grain of the grinding wheel heads makes polishing work child's play, Can be used for a long time. 30-piece grinder set: When you sharpen your chainsaw chain with the sharpener, you need less force to cut wood because your chain makes cleaner cuts with sharp blades. Makes sharpening easier: Since you don't need to remove and assemble the new chain, this makes sharpening much easier. You can sharpen a chainsaw in new condition in just a few minutes. Various sizes: The package contains 10 pieces 4 mm, 10 pieces 5.5 mm, 10 pieces 4.8 mm replacement stones. Can be used to sharpen the saw chain on gasoline and electric chainsaws. Widely used: The saw chain sharpener is suitable for a wide range of applications and can be used for surface decoration lines made of metal, stainless steel, iron, copper, wood, plastic and other materials. Product Description 30 Chainsaw