Description:

Made from high-quality materials, this tool delivers outstanding performance and easily holds drill bits or end mills ranging from 1/32 inch to 1/2 inch.. Featuring a ball-bearing design, it operates more smoothly and provides more consistent clamping force. It ensures excellent concentricity even during heavy-duty drilling.. The self-locking design automatically increases clamping force when cutting resistance rises, eliminating the risk of the drill bit slipping or loosening during drilling. Features an integrated R8 taper shank for plug-and-play use, perfectly compatible with all types of milling machines, drilling machines, and CNC machining centers equipped with R8 interfaces. Widely used in heavy-duty industrial equipment such as CNC machine tools, CNC milling machines, and precision lathes.