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Omega Products ER Collet Extension - Castle Nut (UM) - Straight Shank - C32 ER40 x 50mm
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Description
The Omega ER Collet Extension with Castle Nut (UM) and Straight Shank extends the reach of your ER40 collet system, enabling you to work longer parts without sacrificing accuracy. It’s built for a wide audience—from engineers and machinists to hobbyists and shop-floor technicians—delivering reliable performance when extra reach matters.
Its castle nut design ensures a secure, adjustable connection that stays tight under load, while the straight shank simplifies integration into a variety of tool holders and setups.
- Secure, adjustable castle nut connection: Provides a secure and adjustable grip that lets you tighten or loosen the collet as needed, delivering reliable holding for longer workpieces.
- Straight shank for quick, versatile integration: Fits a wide range of tool holders and setups, enabling fast, repeatable alignments and easier setup.
- 50 mm reach with ER40 precision: Extends machining range by 50 mm while maintaining rigidity and accuracy, so longer parts can be machined in a single setup.
This extension helps you tackle longer projects, reduces setup time between operations, and supports consistent results across jobs thanks to a durable, well-engineered connection that you can trust on every run.
Part Numbers
- Protool Part Number
- OM30046
- 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 OM30046. 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 | 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 Viewing | 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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