Micro 18-Piece Variable-Speed Multipurpose Rotary Tool Kit The Dremel Micro is the perfect combination of size, ergonomics, and power that make it the ultimate tool for both precise and light-duty DIY tasks New LED smart features such as front-end lighting, variable speed indicator, and fuel gauge allow for optimal use New, compact, lightweight, 8-volt max Li-ion battery for power in a smaller size, always ready and no memory effects Docking station continually charges so the tool is always fully charged and ready to use Designed to be held between the thumb and forefinger like a pencil, the Dremel Micro allows a grip that is close to the work-piece for superior maneuverability and control