The Omega BT40 Milling Cutter Arbor MCA12 is a precision toolholder designed to securely grip BT40 milling cutters for accurate, efficient machining. Built for high-speed performance with up to 25,000 RPM and a G2.5 precision rating, it minimizes runout to deliver repeatable, high-quality cuts. Its 75mm gauge length provides balanced projection for stable operation across a wide range of milling setups.

• High‑Speed Stability: Optimized for up to 25,000 RPM with G2.5 precision to minimize runout and ensure consistent, accurate cuts at high speeds.
• Precise Gauge Length: 75mm projection enhances rigidity and balance, reducing chatter and improving finish quality across diverse milling tasks.
• Durable, Broad Compatibility: Crafted from high‑quality materials to withstand demanding environments and fit a wide range of BT40 milling cutters for quick changeovers and reliable performance.

With the BT40 MCA12 arbor, you gain dependable tool retention, predictable performance, and faster setup. The combination of high-speed capability, tight runout control, and robust construction translates into fewer reworks, smoother finishes, and longer cutter life—helping you improve throughput and overall machining quality.