[EXTENSIVE 42-BIT SET]This kit includes a variety of engraving bits, grinding bits, polishing bits, and carving tips. It's designed for detailed design work, personalizing gifts, and decorating items made of metal, glass, ceramic, plastic, and more, enhancing the versatility of your projects. [MULTI-PURPOSE ENGRAVING PEN]Effortlessly engrave on various materials including metal, glass, wood, plastic, ceramics, and leather. Ideal for DIY crafts, model making, custom jewelry, and home decor, this pen ensures in every project, from engraving necklaces to customizing wooden plaques. [ADJUSTABLE SPEED LEVELS]With three speed settings ranging from 12,000 to 20,000 RPM, this engraving pen allows you to tailor your engraving intensity. Perfect for both soft materials like plastic and leather and harder surfaces such as metal and glass, ensuring smooth control and precise crafting. [CORDLESS, , AND PORTABLE]Enjoy the freedom of a cordless design with this compact and engraving pen. Perfect for on-the-go projects and home use, it fits easily in your pocket for spontaneous crafting. Simple to operate, it's ideal for both beginners and seasoned crafters. [LONG-LASTING PERFORMANCE]Equipped with a high-performance motor, this mini rotary tool operates up to 30 minutes on a full charge. It includes an overload protection chip that shuts the motor down when resistance is too high, preventing damage and extending the tool's lifespan., Weight: 0.57209956989 pounds, Manufacturer: Awwertse