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Omega Products BT40 Hydraulic Expansion Chuck - HC12S - 25,000RPM - G2.5 - 58mm Gauge Length - Form AD/B + Cool
| Taper | BT40 |
| Gauge Length (L) | 58 |
| Nose Diameter (D1) | 42 |
| Collet Size (d) | 12 |
| L1 | 40 |
| G | M10 |
Learn more about Klarna
Omega's BT40 Hydraulic Expansion Chuck (HC12S) is a secure tool-holding solution designed for BT40 spindle systems. Built for high-speed machining, it provides reliable gripping and repeatable seating to keep production moving smoothly.
With a maximum speed rating of 25,000 RPM and a G2.5 precision rating, the chuck delivers minimal runout and excellent concentricity for consistent, accurate machining results. The hydraulic expansion mechanism enables quick, tool changes, boosting productivity while reducing vibration and chatter. Designed for Form AD/B + Cool and a 58 mm gauge length, it supports stable tool seating and coolant-enabled operation in demanding environments.
- Hydraulic expansion for fast, tool-change efficiency: Quick, repeatable tool seating with a secure grip that lowers setup time and minimizes vibration during cutting.
- G2.5 precision for tight runout and concentricity: Ensures accurate tool engagement and consistent part quality across high-precision applications.
- BT40 compatibility with Form AD/B + Cool (58 mm gauge length): Specifically matched to BT40 spindles, coolant-capable, and engineered for stable seating and durability in tough workflows.
This BT40 hydraulic expansion chuck is built to endure demanding machining operations, delivering reliable performance, extended tool life, and confident operation across a wide range of tooling and applications.
| Taper | BT40 |
| Gauge Length (L) | 58 |
| Nose Diameter (D1) | 42 |
| Collet Size (d) | 12 |
| L1 | 40 |
| G | M10 |
| Form | AD/B + Cool |
| Fig. | Fig 2 |
| Balance | G2.5@25000RPM |
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 Hydraulic Expansion Chucks - 25,000RPM - G2.5
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