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Omega Products BT50 Combi Shell Mill Arbor - COMBI40 - 15,000 RPM - G6.3 - 75mm Gauge Length
| Taper | BT50 |
| Spigot Size | 40 |
| Gauge Length | 75 |
| Balance | G6.3@15000RPM |
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Description
The BT50 Combi Shell Mill Arbor (COMBI40, 75mm Gauge Length) is a purpose-built mounting interface that lets you attach shell milling cutters to BT50 spindles with accuracy and stability. Designed for high-speed milling, it supports precise positioning and reliable cutter engagement at speeds up to 15,000 RPM.
Ideal for engineers, machinists, and workshops that demand tight tolerances and efficient tool changes, this arbor combines a robust BT50 interface with the COMBI40 platform to deliver consistent performance across demanding milling tasks.
- BT50 COMBI40 Mounting Interface: Securely mounts shell milling cutters on BT50 spindles, providing a rigid, repeatable seating surface that improves stability and accuracy during cuts.
- High-Speed Capability up to 15,000 RPM: Optimized for fast shell milling, helping you achieve shorter cycle times while maintaining consistent cutting performance and surface finish.
- G6.3 Precision Rating: Tight runout and dependable dimensional control ensure repeatable results across tool changes and multiple jobs.
By delivering a stable BT50 interface with precise seating, you’ll experience smoother cutting action, less vibration, and more consistent finishes. The 15,000 RPM capability unlocks faster cycles without sacrificing accuracy, while the 75mm gauge length keeps tools balanced and predictable through multiple operations. In daily production, this means less downtime for tool changes, fewer reworks, and more reliable throughput.
Part Numbers
- Protool Part Number
- OM31113
- Brand
- Omega
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Omega Products BT50 Combi Shell Mill Arbors - 15,000 RPM - G6.3
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