Parts List:1x rotary tool1x charging cable 12x sandpaper rings5x chuck (0.8 mm, 1 mm, 1.6 mm, 2.3 mm, 3.2 mm)5x wool polishing wheels5x grinding wheel grinding heads1x clamp core shaft1x rubber wheel1x circular saw blade1x tapping rod2x diamond grinding needles3x twist bits1x plastic boxProduct Specification:Product name: Cordless Rotary ToolWhy choose our engraving pen?1. With 3 Variable SpeedThree speeds can be changed from 5000 to 15000 RPM, you can change the speed flexibly according to the working task or working material. It is perfect for both beginners and professionals.2. Safe WorkingElectric grinder has built-in overload protection can prevent short circuit and extend motor’s service life. High quality rotary tool, long service life, low noise, produce more stable and perfect results.3. Pen ShapePortable engraving pen can be held in hand like a pen for precision work, easy to control and use, letting you perform intricate work smoothly and effortlessly. Compact size also makes it easy to carry, so you can use it at anytime, anywhere. Specification:Material: ABS + metalColor: gray, green, red (optional)Power: 10WOutput voltage: 3.7V / 10AInput voltage: DC 5V USBCollet size: 0.5-3.2mm Gear speed: 5000-150000RPMIdling time: 2 hoursPolishing time: up to 1 hourNote:1. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color.2. Please allow slight dimension difference due to manual measurement.