This Proxxon Micromot Keyless Chuck is a three-jaw chuck designed for use with MICROMOT rotary tools. It is advantageous when working with different shank diameters and has a capacity ranging from 0.3mm to 3.2mm. This chuck is made of steel for durability and features a quick-release mechanism for efficient tool changes, making it ideal for precision drilling tasks. It is suitable for hobbyists and professionals requiring reliable and precise performance.