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Omega Products ER Collet Extension - Castle Nut (UM) - Straight Shank - C32 ER25 x 100mm
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Description
The Omega ER Collet Extension with Castle Nut (UM) and Straight Shank extends the reach of your ER25 collet system, enabling longer workpieces to be machined without changing tooling. This accessory is ideal for professional shops, engineers, and hobbyists who need more flexibility in a single setup.
Designed for reliability in busy environments, it pairs a robust build with a secure castle-nut connection and a straightforward straight shank for quick, dependable integration into standard tool holders.
- Secure castle-nut connection: Provides an adjustable, lockable link between the extension and the collet body, helping resist loosening and maintain stable accuracy during demanding cuts.
- Versatile straight shank: Fits a wide range of tool holders and machining setups, enabling easy installation and faster changeovers with minimal alignment hassle.
- Extended 100 mm reach for ER25: Adds 100 mm of effective reach to your ER25 tooling, expanding your machining envelope while preserving rigidity and balance for longer workpieces.
With the Omega ER Collet Extension, you can tackle longer parts in a single setup, reduce tool-change downtime, and maintain consistent results across extended reach operations. The combination of a secure connection, easy mounting, and increased reach helps streamline workflows, improve throughput, and deliver reliable finish quality in both production and workshop environments.
Part Numbers
- Protool Part Number
- OM30171
- 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 ER Collet Extensions - Castle Nut (UM) - Straight Shank
View full collection →You are viewing OM30171. Click any other SKU to view its full details.
| Product SKU | Collet Size | Shank Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|
| OM30027 | ER20 | 50 | 20 | £29.80 | In Stock | |
| OM30025 | ER20 | 100 | 20 | £29.80 | In Stock | |
| OM30026 | ER20 | 150 | 20 | £29.80 | In Stock | |
| OM30030 | ER25 | 50 | 20 | £29.80 | In Stock | |
| OM30029 | ER25 | 100 | 20 | £29.80 | In Stock | |
| OM30032 | ER32 | 50 | 20 | £29.80 | In Stock | |
| OM30031 | ER32 | 100 | 20 | £29.80 | In Stock | |
| OM30033 | ER16 | 150 | 25 | £29.80 | In Stock | |
| OM30037 | ER20 | 150 | 25 | £29.80 | In Stock | |
| OM30039 | ER25 | 50 | 25 | £29.80 | In Stock | |
| OM30038 | ER25 | 100 | 25 | £29.80 | In Stock | |
| OM30265 | ER25 | 150 | 25 | £29.80 | In Stock | |
| OM30137 | ER25 | 200 | 25 | £40.53 | In Stock | |
| OM30041 | ER32 | 50 | 25 | £29.80 | In Stock | |
| OM30040 | ER32 | 100 | 25 | £29.80 | In Stock | |
| OM30497 | ER32 | 200 | 25 | £40.53 | In Stock | |
| OM30042 | ER40 | 50 | 25 | £35.76 | In Stock | |
| OM30171 Viewing | ER25 | 100 | 32 | £29.80 | In Stock | |
| OM30044 | ER32 | 50 | 32 | £29.80 | In Stock | |
| OM30045 | ER32 | 60 | 32 | £29.80 | In Stock | |
| OM30043 | ER32 | 100 | 32 | £29.80 | In Stock | |
| OM30046 | ER40 | 50 | 32 | £35.76 | In Stock | |
| OM30369 | ER25 | 100 | 40 | £40.53 | In Stock | |
| OM30048 | ER32 | 85 | 40 | £40.53 | In Stock | |
| OM30047 | ER32 | 100 | 40 | £40.53 | In Stock |
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