Omega Products BT40 Milling Cutter Arbor - MCA12 - 25,000 RPM - G2.5 - 50mm Gauge LengthBT40 Milling Cutter Arbors are designed to securely hold milling cutters and facilitate precise machining operations. With a maximum speed rating of 25,000 RPM and a G2. 5 precision rating, these arbors offer excellent rotational stability and minimal runout, ensuring accurate and efficient cutting performance. They are compatible with a wide range of milling cutters, allowing for versatility in various machining applications. The arbors are