Material: The motor shaft clamp is made of high-quality steel, with a straight handle with a collet nut for tightening Safety: The diameters of parts such as extensions are precisely ground to eliminate imbalances and increase safety when cutting. Deep processing: The extended straight handle is suitable for deep processing and meets the need to expand the processing depth. Well packaged: The collets are packed in a labeled protective container for safe shipping and storage. Wide range of uses: Widely used in drilling, milling, drilling, tapping and other processing. Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be some color differences, please refer to the actual item received.