Function: 1. Excellent heat dissipation performance and designed for long-term use. High-quality accessories with a well-thought-out design. 2. Polishing handle operates quietly and smoothly with minimal vibration. The handle features a lock/unlock mechanism for safer operation and high efficiency. 3. Do not adjust the polishing head lock or handle hitch during operation. Avoid covering the ventilation holes on the handle while in use. 4. Adjustable rotational speed ranging from 0 to 35,000 rpm, with forward and reverse rotation options for high-speed performance, providing a precise and efficient manicure experience. 5. Ergonomically designed handle for comfortable grip and easy handling. Durable construction allows for tool-free replacement of nail drill bits. Electric Drill Holder for Nail Milling Machine Specification: Item Type: Nail Drill Holder Material: Stainless aluminum Speed: 35,000 rpm Size: 14 x 2.3 cm / 5.5 x 0.9 inches Package List: 1 x Nail Drill Handle Note: 1. Connect to the nail drill host device. 2. Insert and remove drill bits by turning the handle knob.