Features 1、Portable and Versatile: Small and compact, this engraving pen is suitable for various projects, including jadestone polishing and wood carving. 2、Multi Functional Design: Take this engraver pen set for polishing, cutting, and crafting, providing versatility and convenience. 3、Efficient Power: The high efficiency electric engraving pen offers stable performance and high accuracy, ensuring accurate and intricate work with ease and consistency. 4、Wide Range of Accessories: This small rotary tool set includes multiple accessories to meet different needs, making operations more convenient. 5、Versatile Applications: This rotary tool set is suitable for various materials such as wood, metal, and more, making it widely applicable for different tasks. Specification Item Type: Mini Rotary Tool Material: Copper, Plastic Speed: 5 Gears Chuck Diameter: Approx. 0.5 to 3.2mm / 0.02 to 0.13in Power: 18W No Load Speed: 5000 to 18000r/min USB Charging Only Battery Model: 5V Lithium Battery(Built in) Battery Capacity: 800mAh Package List 1 x Black Storage Box 1 x Accessories Storage Box 1 x Charging Cable 1 x Electric Grinder 1 x User Manual 1 x Steel Wire Brush 5 x Wool Polishing Wheel 2 x Drill Bit 5 x Ceramic Grinding Head 2 x Pure Copper Chuck 4 x Saw Blade 3 x Diamond Grinding Needle 1 x Sanding Ring Special Rod 1 x Wool Ring Special Rod 2 x Cutting Disc Special Rod 36 x Cutting Disc 20 x Sanding Ring 1 x Wrench 30 x Resin Cutting Disc