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Omega Products ER Collet Extension - Castle Nut (UM) - Straight Shank - C40 ER32 x 85mm

Omega Products ER Collet Extension - Castle Nut (UM) - Straight Shank - C25 ER25 x 150mm

SKU:OM30265

The Omega ER Collet Extension with Castle Nut (UM) and Straight Shank is a reliable accessory designed to extend the reach of ER25 collet setups. It’s ideal for machinists, engineers, and hobbyis... Read more ↓
Collet SizeER25
Shank Length150
Shank Diameter25
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£29.80
Prices shown ex. VAT
In Stock— only 3 left
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Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Omega ER Collet Extension with Castle Nut (UM) and Straight Shank is a reliable accessory designed to extend the reach of ER25 collet setups. It’s ideal for machinists, engineers, and hobbyists who need to handle longer workpieces or access hard-to-reach areas without compromising accuracy.

With a 150 mm extension and a Castle Nut connection, this tool provides a secure, adjustable interface so you can tighten or loosen the collet as needed. The straight shank design offers straightforward insertion into a wide range of tool holders and machining setups, including C25 ER25 applications, making it easy to integrate into your existing workflow.

  • Secure, adjustable castle nut connection: Delivers reliable clamping with quick adjustments, helping maintain stability during cutting and easy tool changes when needed.
  • Straight shank for versatile mounting: Increases compatibility with a broad selection of tool holders and setups, enabling faster, hassle-free installation.
  • Extended reach for longer workpieces (ER25, 150 mm): Lets you machine longer parts in a single setup, expanding your capabilities without sacrificing precision or stability.

This ER collet extension helps streamline your machining workflow by enabling longer reach while preserving alignment and accuracy. It reduces setup time, minimizes tool swaps, and supports consistent, high-quality results across demanding applications.

Part Numbers

Protool Part Number
OM30265
Brand
Omega
No downloads are attached to this product yet.
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Omega Products ER Collet Extensions - Castle Nut (UM) - Straight Shank

View full collection →

You are viewing OM30265. Click any other SKU to view its full details.

Product SKUCollet SizeShank LengthShank DiameterPriceStock Order
OM30027 ER205020£29.80 In Stock
OM30025 ER2010020£29.80 In Stock
OM30026 ER2015020£29.80 In Stock
OM30030 ER255020£29.80 In Stock
OM30029 ER2510020£29.80 In Stock
OM30032 ER325020£29.80 In Stock
OM30031 ER3210020£29.80 In Stock
OM30033 ER1615025£29.80 In Stock
OM30037 ER2015025£29.80 In Stock
OM30039 ER255025£29.80 In Stock
OM30038 ER2510025£29.80 In Stock
OM30265 ViewingER2515025£29.80 In Stock
OM30137 ER2520025£40.53 In Stock
OM30041 ER325025£29.80 In Stock
OM30040 ER3210025£29.80 In Stock
OM30497 ER3220025£40.53 In Stock
OM30042 ER405025£35.76 In Stock
OM30171 ER2510032£29.80 In Stock
OM30044 ER325032£29.80 In Stock
OM30045 ER326032£29.80 In Stock
OM30043 ER3210032£29.80 In Stock
OM30046 ER405032£35.76 In Stock
OM30369 ER2510040£40.53 In Stock
OM30048 ER328540£40.53 In Stock
OM30047 ER3210040£40.53 In Stock

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