The Omega BT30 ER Collet Chuck, Mini Type, is a compact tool holder designed for BT30 spindle systems. Built to hold ER16 tooling with a 60mm gauge length, it delivers secure, precise tool gripping in a small, lightweight package that’s ideal for milling operations that demand balance and reduced overhang.

Capable of speeds up to 20,000 RPM and rated for G2.5 precision, it maintains tight concentricity and minimizes runout to help you achieve clean cuts and consistent surface finishes. The ER collet system makes tool changes quick and reliable, so you can keep high-speed workflows moving with minimal downtime.

• Compact, lightweight mini design: Reduces tool overhang and improves balance, enhancing machining accuracy and stability across small-diameter tooling.
• High-speed performance up to 20,000 RPM: Delivers reliable, concentric gripping at fast speeds (G2.5 accuracy) for clean finishes and predictable results.
• ER16 quick-change collet system: Enables fast, repeatable tool changes with a secure grip, boosting workflow efficiency and reducing downtime.

With secure seating, fast changeovers, and a design tuned for BT30 spindles, this chuck helps you shorten cycle times, maintain consistent quality, and keep your machining operations productive from prototype runs to high-volume production.