The Omega DV40 Combi Shell Mill Arbor is a DIN69871‑compliant tool holder designed to fit a wide range of shell mills. With a 27 mm size and a 55 mm gauge length, it provides a robust, precise mounting for high‑speed milling operations. Its unique combi design lets you mount both cylindrical and face milling cutters on a single arbor, simplifying setups and reducing tool changes in busy shops. Balanced to G6.3 and capable of speeds up to 15,000 RPM, it delivers smooth, stable performance even in demanding cuts. Combi design for versatile mounting: The single arbor accepts both cylindrical and face milling cutters, enabling flexible tooling without multiple arbors and streamlining your setup workflow. DIN69871 compatibility: Built to the standard spindle interface, ensuring reliable, repeatable seating and broad machine compatibility across compatible CNC mills and machining centers. High-speed performance with precise balance: Engineered for up to 15,000 RPM with a G6.3 balance rating, delivering reduced vibration, cleaner finishes, and longer cutter life during demanding high‑speed cuts. This arbor is designed to boost productivity by reducing changes, improving cutting stability, and delivering consistent results across compatible machines. The 55 mm gauge length and 27 mm sizing provide predictable cutter reach and rigidity, making it a dependable choice for engineers, machinists, and shops that demand reliable high‑speed milling performance.