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 polishing stone, wood, etc. Lightweight 13.7 cm pencil-style shank provides control when cutting, grinding, and polishing. High-speed rotation improves 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 improves working efficiency, providing smooth operation. Small size and light weight, pen-like design easy to operate with one hand. Suitable for various metal cleaning tasks, chamfering, grinding, engraving, and internal processing. Can also be used for cutting, grinding, and polishing plastic, stone, wood, etc. Made of metal material, durable, wear-resistant, and rust-resistant. Excellent tool for model making, professional and practical. Widely used in metalwork, carpentry, surface treatment, and shipbuilding industry. Specifications: Air inlet: 1/4" Average air consumption: 90 psi Disc diameter: approx. 3 mm No-load speed: 65,000 rpm Recommended hose diameter: approx. 8 mm Package contents: 1 x micro grinder 1 x 60" hose 2 x chuck wrenches 1 x coupler