Small size and light weight, pen-like design easy to use with one hand. Great tool for model making, professional and practical. Can also be used for cutting, grinding and grinding stone, wood, etc. Lightweight 13.7cm pencil-style shank provides control when cutting, grinding and polishing, high-speed rotation to improve work efficiency. Excellent tool for model making, professional and practical. Package includes: 1 x micro grinder, 1 x 60" hose, 2 x chuck wrenches, 1 x coupler, 1 x manual Features: High-speed rotation to improve working efficiency, providing smooth working. Small size and light weight, pen-like design easy to operate with one hand. Can be applied for various metal cleaning work, chamfering, grinding, engraving, internal processing. Can also be used for cutting, grinding and grinding plastic, stone, wood, etc. Made of metal material, durable, wear-resistant and never rust. Excellent tool for model making, professional and practical. Widely used in metalwork, carpentry, tire surface treatment, shipbuilding industry, etc. Features: Air inlet: 1/4" Average air consumption: 90 psi. Disc diameter: approx. 3 mm. No-load speed: 65,000 rpm. Recommended tracheal diameter: approximately 8 mm. Content: 1 micro grinder. 1 x 60" Hose. 2 chuck keys. 1 coupler.