Serplex engraving pen for DIY detailing, craft projects and small repair work. This compact engraving machine for metal and wood offers cordless operation with USB charging, helping you work without a fixed power outlet. The included 44-piece drill and polishing bit set supports varied tasks on metal, wood, leather and ceramics.Use it for lettering, surface detailing, light carving and polishing at home, in a workshop or during portable craft sessions. The three-speed control helps you select a suitable working pace for different materials and project details. It can serve as an engraving pen, metal engraving machine or compact wood carving machine for hobby use.The rotary format is easier to handle for detailed work than larger benchtop tools and is intended for controlled manual use. It is a mechanical engraving tool, not a laser engraving machine, so results depend on the selected bit, speed and user technique.Choose the bit that matches the task, secure the workpiece and begin at a lower speed. Apply light, even pressure and avoid forcing the rotating tip. Switch off the tool before changing bits, keep the accessory set dry and clear dust from the vents after use