The BT40 ER Collet Chuck is a precision tool holder designed for BT40 spindle systems, delivering secure tool clamping and dependable accuracy for high-speed milling. It’s built for professionals who demand repeatable performance and clean finishes in CNC operations.

• BT40 compatibility: Designed to mount directly on BT40 spindles for quick tool changes and reliable seating in milling centers.
• ER40 interface: Standard ER40 collet connection to securely grip a wide range of cutting tools with minimal runout.
• Speed range: Optimized for 15,000–25,000 RPM operation, with a nominal design point around 20,000 RPM for consistent cutting conditions.
• Precision ratings: G2.5 precision (and associated G6.3 tolerance) to ensure high concentricity and minimal runout during heavy cutting.
• Gauge length: 100 mm gauge length provides stable axial engagement and predictable tool reach across jobs.
• Form: Form AD configuration engineered for compatibility with common BT40 tool holders and stable clamping during production runs.
• Tool holding stability: Tight, concentric clamping minimizes vibration and deflection, delivering better surface finish and longer tool life.

In practice, this collet chuck helps machinists achieve consistent tool paths, improved surface quality, and dependable repeatability at high speeds. It’s ideal for milling, drilling, and finishing tasks in production environments where precise tool alignment and quick changes matter, enabling smoother workflows and predictable results across multiple components.