Omega BT40 Combi Shell Mill Arbor (COMBI40) is a versatile mounting solution for shell milling cutters on BT40 spindles, engineered for reliable performance in busy shops and precision-focused work. With a 60mm gauge length and a maximum speed of 15,000 RPM, it provides stable, repeatable tool mounting for demanding high-speed milling tasks.

• BT40 interface for rigid shell mill mounting: Specifically designed to mount and hold shell milling cutters on BT40 spindles, delivering stable alignment and repeatable results across tool changes.
• High-speed capability up to 15,000 RPM: Optimized for high-speed milling, this arbor maintains control and cut quality at top speeds when paired with compatible tools.
• Precise G6.3 tolerance for reliable accuracy: The G6.3 precision rating ensures low runout and consistent tool positioning, reducing wear and delivering repeatable finishes.

By delivering a secure, accurate tool hold at high speed, the COMBI40 reduces setup time, minimizes deflection, and helps you achieve cleaner finishes and better part-to-part consistency. The 60mm gauge length supports stable engagement during long cuts, while the robust build is designed for daily shop use. Trustworthy construction and tight tolerances give you confidence to push productivity in your milling operations.