Serplex electric engraving pen helps create controlled marks and fine details on wood, stone, metal, glass and jewelry projects. Its cordless format suits home workshops, craft tables and on-site touch-ups where a compact tool is easier to handle than a bench machine.Use it for lettering, outlining, surface decoration and light shaping. The variable-speed control supports slower handling for delicate glass or jewelry work and faster movement across suitable wood or metal surfaces. The built-in LED helps illuminate the working area during close detail tasks.The 58-piece accessory set gives makers different bit options for common craft and repair jobs. For shoppers comparing a metal engraving machine, engraving machine for metal or stone carving tools, this handheld design offers direct control without the setup of a larger machine. It also works as an engraving pen for glass when paired with a suitable bit and gentle pressure.Charge the 1100mAh battery before use and begin at a lower speed. Keep the bit aligned with the surface, use light passes, and allow the tool to cool during extended work. Clean dust from the vents and accessories after each project, then store the Serplex tools set in a dry place