General description This Electric Mini Engraver Pen DIY Engraving Tool Kit is designed for versatility and precision, making it suitable for a variety of materials including metal, glass, ceramic, plastic, and wood. With a stepless speed range from 3,000 to 20,000 RPM, it allows for fine lines to deep grooves, catering to all your engraving needs. The kit includes a total of 30 bits and 8 stencils, ensuring you have the right tools for any project. Technical specifications AC Input: 100-240V DC Output: 9V/1000mA Stepless Speed: 3,000-20,000 RPM Color: Red Material: Metal Measurement allowed error: +/- 1-3cm Compatibility and accessories Includes 10 pointed bits Includes 5 round bits Includes 4 jujube-shaped bits Includes 11 flat bits Includes 4 graphic stencils Includes 4 letter/number stencils Includes 1 stylus Includes 1 engraving tool Includes 1 US standard plug Includes 30 sanding heads Packaged in a box Installation Plug Type: US Plug, compatible with Canada, India, Japan,