Compatible with 3mm drill bits and accessories Designed for most 3.0mm shank drill bits, this fine polishing pen supports a variety of hobby applications including resin kit customization, fine grinding and drilling. Fast Type C Charging and Long Run Time This hobby tool charges up to 80% in just 30 minutes and is fully with Type-C USB in 60 minutes.It can run for up to 1 hour after charging, making it ideal for long periods of grinding and grinding. 3-speed mini drilling tool with fine control and equipped with 3-speed variable speed (5000/10000/18000 rpm), this mini drilling tool allows you to easily switch between fine grinding, precise grinding and fine polishing tasks. Electric Sand and Sharpener Pen for Hobbyists This portable electric sander pen offers sharpening, polishing and grinding, making it ideal for miniature models, resin models, jewelry and DIY processes.A real scrub for lovers. Advanced safety features and ergonomic design with overload protection, anti-roll design and real-time speed indication.The body (only 58g) and ergonomic handle maximum comfort for both amateurs and professionals., Manufacturer: Akfldms