Made of metal material, durable, wear-resistant and never rust. Great tool for the model maker, professional and practical. High speed rotating to enhance the working efficiency, providing a smooth work. Can be applied in various metal cleaning, chamfering, grinding, engraving, internal processing. Also can be used in cutting, grinding and grinding of plastic, stone, wood and so on. Small size and light weight, pen-shaped design is easy to use with one hand. Widely used in ironwork, carpentry, tire industry surface treatment, shipbuilding industry etc.