The Techniks SYIC16169 BT40XER25-70mm collet chuck is a high-quality workholding tool designed for CNC machining and metalworking applications. Made in the United States by the reputable brand Techniks, this ER25 collet chuck ensures precise and reliable clamping of workpieces with diameters ranging from 25mm to 70mm. Ideal for industrial settings, this product provides a secure grip on components for accurate machining and manufacturing processes.