The ER Series Collet Chucks are Europe's most popular collet system, designed to maintain excellent concentricity during drilling and milling operations. These versatile chucks are suitable for both conventional and CNC machines, offering reliable performance across various machining applications.Features and Benefits Collapsing collet design accommodates a range of tool diameters, providing versatility and reducing the need for multiple collets, enhancing efficiency and reducing setup time High concentricity ensures precise tool holding, maintaining minimal runout and improving machining accuracy, resulting in better surface finishes and tool life Long reach options enable access into deep recesses, expanding application versatility and allowing the operator to machine intricate or difficult-to-reach areas Balanced to G6.3 at 15,000rpm guaranteeing smooth and stable performance at high speeds, reducing vibrations and ensuring consistent results in high-speed machining environments