Please log in here to access all benefits, including promotional discounts and faster checkouts.

Omega Products BT40 GSK Collet Chuck - GSK06 - 25,000RPM - G2.5 - 120mm Gauge Length (L1)
| Taper | BT40 |
| Collet Size | GSK06 |
| Gauge Length (L1) | 120 |
| Clamping Range | 1-6 |
| Balance | G2.5@25000RPM |
| Nut Diameter (D) | 19.5 |
Learn more about Klarna
The Omega BT40 GSK Collet Chuck is a precision toolholding solution for BT40 spindle systems. It’s designed to securely hold cutting tools at high speeds, with a maximum rating of 25,000 RPM. The G2.5 precision level means minimal runout and excellent concentricity, helping you achieve consistent, accurate cuts.
Built for seamless integration with GSK systems, this chuck delivers a reliable grip for demanding milling tasks. It features a 120mm gauge length (L1), which provides stable seating and repeatable tool changes to keep your workflow smooth and productive.
- BT40 compatibility with GSK systems: Secure, tool-to-spindle engagement that fits BT40 spindles and works seamlessly with GSK setups for reliable performance and easy integration.
- 25,000 RPM high-speed capability: Supports fast machining cycles and stable cutting at high speeds, reducing production time without sacrificing precision.
- G2.5 precision with 120mm gauge length (L1): Low runout and excellent concentricity, with a balanced gauge length that enhances rigidity and repeatability across jobs.
With this BT40 GSK Collet Chuck, you gain dependable toolholding that translates into tighter tolerances, smoother cuts, and fewer interruptions. The strong grip minimizes vibration for cleaner finishes, while the durable construction stands up to daily use in busy shops. The result is a more efficient milling workflow, faster ramp-up to full speed, and consistent results you can trust across multiple jobs and operators.
| Taper | BT40 |
| Collet Size | GSK06 |
| Gauge Length (L1) | 120 |
| Clamping Range | 1-6 |
| Balance | G2.5@25000RPM |
| Nut Diameter (D) | 19.5 |
| M | M8 x 1 |
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 GSK Collet Chucks - 25,000RPM - G2.5
View full collection →You are viewing OM30475. Click any other SKU to view its full details.
| Product SKU | Collet Size | Gauge Length (L1) | Clamping Range | Nut Diameter (D) | M | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OM30415 | GSK06 | 60 | 1-6 | 19.5 | M8 x 1 | £79.09 | In Stock | |
| OM30409 | GSK06 | 90 | 1-6 | 19.5 | M8 x 1 | £79.09 | In Stock | |
| OM30475 Viewing | GSK06 | 120 | 1-6 | 19.5 | M8 x 1 | £92.08 | In Stock | |
| OM30410 | GSK06 | 150 | 1-6 | 19.5 | M8 x 1 | £105.06 | In Stock | |
| OM30411 | GSK10 | 60 | 1-10 | 27 | M11 x 1 | £79.09 | In Stock | |
| OM30412 | GSK10 | 90 | 1-10 | 27 | M11 x 1 | £79.09 | In Stock | |
| OM30413 | GSK10 | 120 | 1-10 | 27 | M11 x 1 | £92.08 | In Stock | |
| OM30414 | GSK10 | 150 | 1-10 | 27 | M11 x 1 | £105.06 | In Stock | |
| OM30416 | GSK16 | 60 | 1-16 | 40 | M18 x 1.5 | £79.09 | In Stock | |
| OM30417 | GSK16 | 90 | 1-16 | 40 | M18 x 1.5 | £79.09 | In Stock | |
| OM30418 | GSK16 | 120 | 1-16 | 40 | M18 x 1.5 | £92.08 | In Stock | |
| OM30419 | GSK16 | 150 | 1-16 | 40 | M18 x 1.5 | £105.06 | In Stock | |
| OM30420 | GSK16 | 200 | 1-16 | 40 | M18 x 1.5 | £128.66 | In Stock | |
| OM30421 | GSK25 | 90 | 1-25 | 55 | M28 x 1.5 | £92.08 | In Stock | |
| OM30422 | GSK25 | 120 | 1-25 | 55 | M28 x 1.5 | £113.33 | In Stock | |
| OM30423 | GSK25 | 150 | 1-25 | 55 | M28 x 1.5 | £120.41 | In Stock |
No products match your filters.


