Easy Installation: Quick and simple setup allows for efficient tool changes, reducing downtime during projects. Strong Chuck Connection- This high-speed steel collet chuck holder contains very high-quality boring heads and high-quality boring bars, and these two tools can be very efficiently suitable for milling machine work. Smooth Bright Connector- This high precision collet chuck connection rod has fine and smooth surface of this chuck connecting rod is smooth and flawless. It is stable in use, has excellent performance, simple operation, convenient use, and quick drilling. Widely Application Range- This drill chuck holder set is the main accessory of boring machine and is widely used in boring, milling, drilling, tapping, engraving, CNC and other processing.
Package Included: 12PCS Collets (3/32", 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16" and 3/4"), 1 PCS R8 Shank Threading (7/16''-20), and 1 PCS Wrench.