This cordless engraving pen is made of high quality ABS and brass, which is durable for durability. The electric grinding pen is suitable for stamping, engraving, painting, marking, cutting and polishing. This tool can be used on stainless steel, ceramic, glass, plastic, wood, animal horns, acrylic panels and circuit boards. Low voltage design with powerful brass motor and equipped with a variety of grinding and drilling accessories. With low prices and high performance. It is the best choice for users like DIY and jewelry chains. Function: 1. This cordless engraving pen is made of high quality ABS and brass for durability. 2. The electric grinding pen is suitable for stamping, engraving, painting, marking, cutting and polishing. 3. This tool can be used on stainless steel, ceramics, glass, plastic, wood, animal horns, acrylic panels and circuit boards. 4. Adopting low-voltage design, with an all-brass motor, and equipped with a variety of grinding and drilling accessories. 5. With low price and high performance. It is the best choice for users like DIY and jewelry chains. Specification: Item Type: Engraving Pen Material: ABS + Brass Model: P500-19 Voltage: DC5V (USB) Power: 2000mAh lithium battery Package list: 1 x engraving pen5 x accessories 5x lining 5x drill 2 x disc 1x USB 1 x plastic box Note: 1. Keep your workspace tidy 2. Do not use in an explosive gas or dust environment 3. Pay attention to electrical safety, do not use the tool in a humid environment or in the rain. 4. Make sure the chuck retaining nut is tightened before starting the tool 5. The continuous usage time of this product does not exceed 15 minutes. Do not block the heat dissipation hole during use. If the motor is blocked during operation, please turn off the switch in time to avoid itburn the engine.