Omega BT40 Milling Cutter Arbor MCA12 is a precision tool designed to securely hold BT40 milling cutters on compatible milling machines. Engineered for high-speed machining, it delivers stable rotation up to 25,000 RPM, helping you achieve clean, accurate cuts with consistent results.

With a G2.5 precision rating and a compact, 25mm gauge length, this arbor supports versatile applications across manufacturing, milling, and tooling setups. Built from high-quality materials, it stands up to demanding environments, delivering reliable performance and long service life.

• High-Speed Stability up to 25,000 RPM: Ensures precise cuts with minimal vibration and consistent runout, even under demanding milling cycles.
• G2.5 Precision Tolerance: Delivers tight concentricity and repeatable results, reducing setup time and scrap from misalignment.
• 25mm Gauge Length for Consistent Seating: Provides reliable cutter seating and quick, repeatable setup across multiple tools and jobs.

This BT40 arbor gives you a dependable foundation for your milling operations, helping improve workflow by minimizing downtime for adjustments, delivering repeatable accuracy across sessions, and extending tool life through balanced, stable mounting. Whether you're building prototypes or running high-volume production, you can trust this arbor to maintain precise alignment and robust durability in everyday machining tasks.