Feature 1、Variable Speeds: 3 variable speeds from 5,000 to 18,000 RPM, allowing for various situations. The lowest speed allows for safe nail polishing, while the highest speed is ideal for metal engraving. 2、Type C Charging: The engraving tool can be charged via a Type C interface. Once fully charged, it can run for up to 30 minutes, making it easy for you to achieve better engraving craftsmanship. Also, the cordless design meets the needs of outdoor work, say goodbye to tangled wires and sockets. 3、Wide Application: The rotary DIY tool kit includes all kinds of accessories can widely be used in engraving, carving, sanding, polishing, etching, routing, grinding, drilling, cutting etc. 4、Comfortable Grip: Light and compact pen like design provides comfortable use for accurate engraving performance from fine lines to deep grooves. Ergonomic grip adds extra comfort and steady control. 5、Nice Choice for Beginners: Our engraving pen is easy to operate and can be used to create keychains, DIY necklaces. It's an amazing present for people who like handmade stuff and DIY enthusiasts. Item Type: Cordless Rotary Tool Kit Material: Plastic Built in Lithium Ion Battery: 1x 300MAH (Shipped with Built in Battery) Speed: 5000-10000-18000rpm, 3 Gears Collet Size: 2.35mm / 0.1in Rated Power: 10W Package List 1 x Engraving Pen 20 x Grinding Needle 1 x Grinding Needle Box 1 x Connecting Rod 3 x Stainless Steel Discs 16 x Stencils 1 x Instruction Manual 1 x Charging Cable Note 1. Please clean the body with a soft cloth. 2. Do not use cleaning solvents or detergents. 3. None of the accessories of this tool are replaceable.