This cordless engraving pen is made of quality ABS and brass, which is durable for long service life. Electric grinding pen is suitable for punching, grinding, engraving, painting, marking, cutting and polishing. This tool can apply to stainless steel, ceramic, glass, plastic, wood, horn animals, acrylic panels, circuit boards. Adopting low-voltage design, with powerful brass motor, and is equipped with a variety of grinding and drilling accessories. With low price and high performance. It is the best choice for users such as DIY enthusiasts and jewelry making chains. Feature: 1. This cordless engraving pen is made from quality ABS and brass, which is durable for a long service life. 2. The electric grinding pen is suitable for punching, engraving, painting, marking, cutting and polishing. 3. This tool can be applied to stainless steel, ceramic, glass, plastic, wood, animal horn, acrylic board, circuit board. 4. Adopting a 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 such as DIY enthusiasts and jewelry making chains. Specification: Item Type: Engraving Pen Material: ABS + Brass Model: P500-19 Voltage: DC5V (USB) Power supply: 2000 mAh lithium battery Package list: 1 x engraving pen5 x accessories < p>5 x chuck 5 x drill 2 x disk 1 x USB 1 x plastic box Note: 1. Keep your workspace tidy 2. Do not use it in an environment with explosive gas or dust 3. Pay attention to electricity safety, do not use the tool in a humid environment or in the rain. 4. Make sure the chuck retaining nut has been tightened before starting the tool 5. The continuous use time of this product does not exceed 15 minutes. Do not block the heat dissipation port during use. When the motor is blocked during operation, turn off the switch in time to avoid burning the motor.