Mini Cordless Drill Rechargeable USB Woodworking Wireless Engraving Pen With LED Micro Rotary Tool Dremel Mini Engraver Mill Tools & Industrial November 18, 2023 Price: Speed :3000-15000r/minClamp:0.5-3.2mm (need to change chuck)Voltage: 3.7VCharge:USBApplication:Engraving,carving,drilling,polishing,cleaning