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Omega Products Dual Contact DCBT40 End Mill Holder - G2.5 - 25,000RPM - 40mm Bore Size - 105mm Gauge Length
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Description
The Omega Products Dual Contact DCBT40 End Mill Holder is built for precision-heavy CNC milling. It uses dual contact on the face and taper to maximize rigidity, delivering stable tool engagement and reduced runout at high speeds.
Designed for straight shank end mills with Weldon flats, this holder features a 40 mm bore and a 105 mm gauge length, offering versatile mounting options while maintaining balance and reliability up to 25,000 RPM. It is engineered to Form AD standards and balanced to G2.5 for smooth, consistent performance.
- Dual-contact rigidity (face and taper): Maximizes tool stability by engaging both the face and the taper, reducing runout and chatter for cleaner cuts at high speeds.
- 40 mm bore, 105 mm gauge length, and Weldon-flat straight shank mounting: Secure seating for straight shank end mills with Weldon flats, enabling reliable clamping, quick setup, and repeatable results even under heavy cutting loads.
- Form AD compliant and G2.5-balanced to 25,000 RPM: Engineered to Form AD standards and precision-balanced to G2.5, delivering smooth operation and long tool life at up to 25,000 RPM.
With this end mill holder, you gain increased rigidity, improved surface finish, longer tool life, and reduced downtime due to tool seating issues. The combination of dual-contact design, compatible bore and gauge length, and precise balance at 25,000 RPM translates into more consistent results, less chatter, and greater overall productivity in CNC milling tasks.
Part Numbers
- Protool Part Number
- OM34639
- Brand
- Omega
- Category
- Dual Contact
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: DCBT40 Dual Contact End Mill Holders
View full collection →You are viewing OM34639. Click any other SKU to view its full details.
| Product SKU | Bore Size | D1 | G | Guage Length (L) | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| OM34611 | 6 | 25 | M6 | 50 | £49.09 | In Stock | |
| OM34614 | 8 | 28 | M8 | 50 | £47.12 | In Stock | |
| OM34617 | 10 | 35 | M10 | 63 | £47.12 | In Stock | |
| OM34620 | 12 | 42 | M12 | 63 | £47.13 | In Stock | |
| OM34626 | 16 | 48 | M14 | 63 | £47.13 | In Stock | |
| OM34629 | 18 | 50 | M14 | 63 | £47.13 | Next Day | |
| OM34632 | 20 | 52 | M16 | 63 | £47.13 | In Stock | |
| OM34635 | 25 | 65 | M18x2 | 90 | £67.92 | In Stock | |
| OM34637 | 32 | 72 | M20x2 | 100 | £64.64 | Next Day | |
| OM34639 Viewing | 40 | 80 | M20x2 | 105 | £73.71 | Next Day |
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