The Omega Products VDI20 Collet Chuck ER25 - Type E4 is a precision tool holder that securely clamps ER25 collets and tool shanks. Designed for milling, drilling, and other demanding machining tasks, it delivers repeatable accuracy and reliable tool retention in a compact VDI20 form factor. With a Type E4 design and a precision nut, it enables quick collet changes and a strong, consistent grip that minimizes runout. It is available in multiple sizes and tapers to fit a wide range of machine spindles and tool shanks, and it is manufactured from high-quality materials for long-lasting durability. Quick-change precision nut: Enables fast, secure collet changes with minimal downtime, keeping setups repeatable and productive. High clamp force and runout accuracy: Ensures repeatable, precise retention and minimal runout for cleaner cuts and longer tool life. Versatile compatibility and rugged construction: Available in multiple sizes and tapers to fit different spindles and tool shanks; built from durable materials to withstand demanding shop conditions. By delivering fast collet changes, strong, repeatable grip, and broad compatibility, this holder reduces setup time, minimizes tool wear from runout, and helps you achieve tighter tolerances, better surface finishes, and fewer reworks. It supports reliable operation in busy shops and protects your tooling investment over the long term.