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Omega Products BT40 Combi Shell Mill Arbor - COMBI16 - 15,000 RPM - G6.3 - 55mm Gauge Length
| Taper | BT40 |
| Spigot Size | 16 |
| Gauge Length | 55 |
| Balance | G6.3@15000RPM |
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Description
The Omega BT40 Combi Shell Mill Arbor (COMBI16) is a versatile mounting solution for shell milling cutters on BT40 spindles, delivering rigidity and repeatable alignment for high-speed milling.
Designed for engineers, machinists, and hobbyists, it supports speeds up to 15,000 RPM with a G6.3 precision rating to keep tool paths accurate and results consistent. Its 55mm gauge length provides predictable seating depth for quick, reliable setups.
- 55mm Gauge Length: Ensures predictable engagement depth and repeatable setups, reducing guesswork and downtime.
- Up to 15,000 RPM: Enables high-speed cutting with shell milling cutters while maintaining stability and precision.
- G6.3 Precision: Tight runout control for cleaner cuts, longer cutter life, and consistent performance across jobs.
This combi arbor integrates with BT40 spindles to deliver reliable performance in a wide range of milling tasks, helping you accelerate setup, reduce downtime, and achieve repeatable, high-quality results from shell milling operations.
Part Numbers
- Protool Part Number
- OM31031
- 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 BT40 Combi Shell Mill Arbors - 15,000 RPM - G6.3
View full collection →You are viewing OM31031. Click any other SKU to view its full details.
| Product SKU | Taper | Spigot Size | Gauge Length | Balance | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| OM31031 Viewing | BT40 | 16 | 55 | G6.3@15000RPM | £40.53 | In Stock | |
| OM31030 | BT40 | 16 | 100 | G6.3@15000RPM | £54.84 | In Stock | |
| OM31033 | BT40 | 22 | 55 | G6.3@15000RPM | £40.53 | In Stock | |
| OM31032 | BT40 | 22 | 100 | G6.3@15000RPM | £54.84 | In Stock | |
| OM31035 | BT40 | 27 | 55 | G6.3@15000RPM | £40.53 | In Stock | |
| OM31034 | BT40 | 27 | 100 | G6.3@15000RPM | £54.84 | Next Day | |
| OM31036 | BT40 | 32 | 60 | G6.3@15000RPM | £40.53 | In Stock | |
| OM31037 | BT40 | 40 | 60 | G6.3@15000RPM | £47.68 | In Stock |
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