The Omega BT40 ER Collet Chuck (Mini Type) is a compact, high-precision tool holder designed for BT40 spindle systems, optimized for ER16 tooling. It combines lightweight balance with rigid concentricity to deliver reliable performance in high-speed milling and finishing.

• BT40 compatibility: Engineered to fit BT40 spindles for secure, reliable mounting in your standard machining setup.
• ER16 collet system: Uses the ER16 interface for a wide range of tool options and easy clamping.
• Speed rating: Capable of up to 20,000 RPM, supporting fast feeds and smooth operation in high-speed applications.
• Precision rating: G2.5 tolerance to maintain tight tool concentricity and minimize runout during cutting.
• Gauge length: 100 mm length provides a balanced reach with strong rigidity for consistent machining outcomes.
• Mini form AD/B: Compact, lightweight body design reduces tool overhang and enhances overall spindle balance.
• Quick-change capability: ER collet system enables fast tool changes to keep your workflow efficient and productive.

This mini-type chuck is ideal for shops performing precision milling, pocketing, and finishing where accurate toolholding and fast tool changes matter. Expect improved surface finishes, tighter tolerances, and reduced vibration thanks to the combination of a lightweight, balanced design and robust ER16 collet performance. The 100 mm gauge length, Form AD/B body, and 20,000 RPM capability make it a practical choice for a wide range of BT40 milling tasks without sacrificing rigidity or repeatability.