Material: Our diamond chainsaw sharpener are made of emery grinding head, with good grinding effect, fine and uniform, fine carving, hard and not easy to wear, reusable and durable.Various Specifications: The chainsaw diamond sharpener have 3 different sizes, which are applicable to electric saw (5 / 32 inch / 4.0mm), small chain saw (3 / 16 inch / 4.8mm) and large chain saw (7 / 32 '' inch / 5.5mm).Widely used: The burr grinding stone files very suitable for metal polishing, chain saw, bearing solder joint, etc. and diamond chainsaw sharpener also suitable for grinding and carving of jade, jade, ceramics, glass, cemented carbide and other materials.Sharp and wear-resistant: this diamond chainsaw sharpener can be used instead of a file to make your chain as sharp as before. and the chain does not need to be removed during work.What Will You Get: You will get 3 different sizes of diamond chainsaw sharpener(4mm, 4.8mm, and 5.5mm), each size has 7 pieces, a total of 21pcs, large quantities, different sizes can be used for different place, and which can meet your daily needs.