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Omega Products Castleated Spanner/Wrench - For ER Collet Chucks with Castle (UM) Nut - ER25
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Description
Omega Products Castleated Spanners/Wrenches are purpose-built tools for technicians working with ER collet chucks that use a castle (UM) nut.
Designed for ER25 systems, these wrenches provide precise, secure tightening, helping you install and service chucks quickly and with confidence.
- Castleated engagement for UM nut: The uniquely shaped tips align with the castle (UM) nut to deliver a precise, slip-free grip that reduces the risk of damage during tightening.
- ER25-focused compatibility: Specifically matched to ER collet chucks with UM nuts, enabling fast, reliable tightening and consistent clamping across setups.
- Ergonomic, purpose-built design: Red-handled, easy-to-grip form provides confident control through repetitive adjustments and everyday workshop use.
In practice, this castleated wrench streamlines tool changes and maintenance by delivering a secure, repeatable engagement with the UM nut, helping to minimize downtime and improve overall workflow when working with ER collet chucks.
Part Numbers
- Protool Part Number
- OM31407
- Brand
- Omega
- Category
- Wrench
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 Castleated Spanners/Wrenches - For ER Collet Chucks with Castle (UM) Nut
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