Engraving pen is designed for engraving or grinding on glass, metal, wood, stones, plastic, ceramics, and other materials. It can also be used for polishing nails or other items. Adjustable speed engraving with stepless control from 3,000 to 20,000 RPM. Lower speeds are suitable for metal and wood, while higher speeds work best for glass and ceramic. Choose the appropriate speed setting for efficient and safe operation. Easy to use: Simply turn on the engraver pen, slide the switch to adjust to the desired speed, and hold it like a pen for precise control over the engraving or drawing path. Includes 52 accessories and a scriber. This DIY tool kit offers a variety of attachments for engraving, carving, sanding, polishing (including nail polishing), and drilling. Color: Black Material: Metal AC input: 100-240V DC output: 9V / 1000mA No-load speed: 3,000–20,000 RPM Uses: This scriber pen is ideal for marking, drawing, and etching. This jewelry tool set supports a wide range of applications including engraving, drilling, grinding, and polishing. Plug Type: US Plug, compatible with countries such as Canada, India, Japan, Mexico, Thailand, Taiwan, the United States, and the Philippines. Packing List: 1 x Carving tool 2 packs (6 x Polishing heads and 6 x Sanding rings) (Shaft diameter: 2.35mm, Bore diameter: 6.35mm) 30 x Different bits (10 points, 5 round bits, 4 shaped bits, 11 flat bits) 16 x Templates (8 pattern templates, 8 letter/number templates) 1 x Adapter 1 x Sculpting pen 1 x User manual Content limited to items listed above; other products not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.