Features: -High concentricity -Power motor -12-gears speed regulation -USB charging -Small and flexible -Pen type body Descriptions: 1. Multiple uses to meet different needs. 2. Grinding/polishing/engraving/rusting/drilling/cutting etc. 3. Built-in 1100mAh lithium battery, large capacity, charging, long-lasting battery life. 4. Steady grip with one hand, no jumping or shaking. 5. Pen-style design, easy to hold, small body but big energy. 6. Metal spindle, the collet is durable and will not drop the drill, and the collet can be quickly replaced to meet different needs. 8. Three-dimensional high-efficiency heat dissipation to protect the motor from durability. 8. 12-gears speed power adjustment to meet different needs. 9. USB charging interface, convenient charging anytime, anywhere. Specifications: Name: Mini Electric Drill Grinder Power supply mode: USB charging Grinding voltage: 7.4V Gear adjustment: 12-gear adjustment Speed: 5000r/6000r/8000r/10000r/12000r/13000r/15000r/17000r/19000r/21000r/23000r/25000r/min Rated power: 50W Collet size: 3.2mm Battery capacity: 1100mAh Package includes: 1x Cordless Rotary Tool 1x USB Charging Cable 50 Accessories 6x Sanding wheel slices 10x Sandpaper sheet 2x Abrasive wheel slices 4x Wool wheel 4x brush 5x Abrasive head 2x Rubber wheel 10x Sanding ring 4x wooden polishing 1x Drill 2x joint rod