Features 1、[High Speed] The electric polishing pen features a high performance motor that runs at speeds up to 18000RPM, ensuring efficient polishing, carving, or engraving tasks. 2、[Adjustable Speed] This cordless rotary tool offers 3 speed settings for customized operating, allowing users to adjust the speed based on the specific task at hand. 3、[Versatile Kit] Equipped with 9 polishing bits, the rotary tool provides a variety of options to meet different polishing and engraving needs, enhancing versatility. 4、[Automatic Power Off] The electric carving pen features an automatic power off function to guard the tool from damage when encountering high workload resistance. 5、[Ergonomic Design] With a lightweight frame and ergonomic handle, the electric grinding pen offers accurate fingertip control and comfortable grip, easy to handle and use. Specification Item Type: Electric Polishing Pen Material: ABS Model: HW 013 Speed: 18000 RPM Maximum Power: <2W Charging Time: 90 Minute Battery Capacity: Lithium Battery 500mAh x 1 (Built in) Applicable Grinding Head: 2.35mm Size: Approx. 130x23x23mm / 5.12x0.91x0.91in Package List 1 x Electric Polishing Pen 9 x Grinding Bits 1 x Base 1 x Data Cable 1 x User Manual