The Omega BT40 ER Collet Chuck, Mini Type for ER11 tooling, is a compact, high-precision tool holder designed for BT40 spindle systems. It delivers fast tool changes and reliable performance up to 20,000 RPM, with a 70 mm gauge length and Form AD interface for seamless integration in your CNC setup.

• Mini design for BT40 spindles: A compact, lightweight tool holder that minimizes overhang and improves balance during high-speed machining.
• ER11 collet system: Secure tool gripping with quick-change capability to reduce downtime between tools.
• High-speed capability: Supports machining up to 20,000 RPM for efficient production and fine finishes.
• Precision tolerance: G2.5 rating ensures tight concentricity and minimal runout for accurate cuts.
• Gauge length: 70 mm gauge length provides stable engagement and rigidity in the spindle.
• Form AD interface: Standard Form AD configuration for reliable compatibility with BT40 spindles and tooling.

With its precise grip and low-overhang design, this ER11 mini chuck helps you achieve cleaner holes, smoother milling finishes, and tighter tolerances across materials. The combination of a robust G2.5 precision class and a high-speed 20,000 RPM capability makes it well-suited for small-diameter milling, engraving, and precise drilling tasks in automation-friendly setups. The quick-change ER collet system reduces setup time, keeping your workflow moving and your throughput high without compromising accuracy.