(4 sizes of collets)
It comes with 4 kinds of chucks that are 1.6mm, 2.3mm, 3.0mm, and 3.2mm, which is almost different in diameters, so you can install more drills correctly. If the diameter of other similar drill bits are suitable for this product chuck, you can use it. Easily perform various tasks such as polishing, polishing, cutting, cutting, removing dirt and so on. It also features a flexible shaft to improve your work efficiency.