This chain saw sharpener set includes titanium-coated emery grain grinding heads in 3 sizes for fine and uniform grinding. The diamond grinding heads are sharp, wear-resistant and can be used on various metals and materials. The high hardness and wear-resistant hardness alloy material rod improves grinding efficiency and the contact surface. The set is portable and dust-free, perfect for carving and grinding on the go. Sturdy and durable, this set is a must-have for any chainsaw owner. Features 1. Made of emery particles, titanium-plated surface, good grinding effect, fine and uniform, fine carving and hard texture. The rod is made of high hardness and wear-resistant hardness alloy material. 2.The diamond grinding head of the chainsaw chain is sharp and wear-resistant, wears smoothly, and the surface of the grinding effect is smooth and shiny. Can be sanded easily. 3. Various specifications of lengthened grinding heads are designed to increase the contact surface, effectively improve the grinding efficiency, and have no dust pollution. 4. The diamond chainsaw sharpener is widely used in grinding and carving of metal workpieces such as sprocket teeth, stone carving, jade, chainsaw chain, cemented carbide, gemstone, jade, ceramics, glass, mold, steel and other metals. 5. We have three sizes, 5/32inch (4.0mm), 3/16inch (4.8mm), 7/32inch (5.5mm); The rod diameter is 3.0mm. Specification Material: Titanium coated emery grains Color: Silver, Gold Size: 3 x 4 mm, 3 x 4.8 mm, 3 x 5.5 mm Weight: 3 g, 4 g, 5 g Package Include: 1 Diamond Chainsaw Sharpener