Features: Discover the versatility of the Miniature Multifunction Tool, featuring a 3.7V rechargeable design with five adjustable speeds ranging from 8000 to 18000rpm, perfect for efficient polishing, cleaning, and engraving tasks. Equipped with a 1800mAh battery, this rotary tool ensures long lasting performances, while its metal accurate chucks provide stable and reliable accessory holding, making it a essential addition to your toolkit. Ideal for DIY enthusiasts, artisans, and home repair professional, this tool caters to a wide ranges of users seeking accuracy and convenience in their projects. Whether you're engaged in home repairs, crafting intricate models, or polishing jewelry, this comprehensive 166 piece set offers all the accessories needed to tackle various applications with ease. Designed with ergonomic comfort in mind, the Miniature Multifunction Tool is not only practical and easy to use but also a powerful accessory in bringing your creative and practical projects to life. Specifications: Component:Metal Plastic Size:Approx.160x30mm/6.29x1.18inches Voltages: 3.7V Battery capacity: 1800MAH Speed: 8000---18000rpm Package Includes: 166Pcs Grinding Machine Set note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!