Description Electric engraving pen has built-in overload protection can prevent short circuit and extend motors service life. High quality engraving pen, long service life, low noise, more stable and perfect results.Portable Engraving pen can be in hand like a pen for precision work, easy to control and use, letting you intricate work smoothly and effortlessly. size also makes it easy to carry, so you can use it at anytime, anywhere.The cordless carving pen is power by rechargeable battery, so you t need to change battery frequently, low energy consumption, friendly to the environment, saving the cost of changing battery.Power: 8WVoltage: 3.6VBattery type: 501550 rechargeable lithium batteryBattery capacity: 300mAhCharging time: 30 minutes for 80%, 60 minutes for 100%Collet depth: 25MMClamping diameter: 3mm (suitable for all 3mm size grinding bits, reducer drills, carving knives etc.)Charging specification: USB - Type-C (for all USB port batteries)Motor speed: 1 speed 5000, 2 speeds 10000, 3 speeds 18000.Endurance: 1 hour or more unloaded at high speedColour:A: silverMaterial:MetalPackage Contents:1 x Engraving Pen1 x Data Cable1 x Marking Pen16 x Engraving Templates30 x 2.35mm BitsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.