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Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 11IRB12UNBMA

Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 11IRB12UNBMA

SKU:11IRB12UNBMA

Introducing the Carmex Thread Turning Internal Insert for UN thread standards (UNC, UNF, UNEF, UNS). Right Hand version 11IRB12UNBMA, this internal threading insert is designed to form accurate t... Read more ↓
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Thread TypeInternal
Thread DirectionRight Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch12
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£8.10
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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Description

Introducing the Carmex Thread Turning Internal Insert for UN thread standards (UNC, UNF, UNEF, UNS). Right Hand version 11IRB12UNBMA, this internal threading insert is designed to form accurate threads inside holes and is part of our industry-leading range of laydown triangular inserts. It’s built to cover the majority of thread standards used today, helping you complete a wide range of jobs with a single, reliable tool.

Its laydown triangular geometry provides stable engagement and smooth cutting action, supporting consistent thread formation across tasks from simple to more demanding ones. This design helps you achieve reliable results with straightforward setup, making it a dependable choice for daily threading work.

  • Broad thread compatibility: Supports UNC, UNF, UNEF, and UNS internal threads in right-hand orientiation, enabling you to tackle most threading jobs with a single insert.
  • Triangular laydown geometry for stable cutting: The layout delivers consistent engagement, smooth chip control, and reliable thread formation across a range of sizes.
  • Proven, globally recognized performance: Part of an industry-leading range with worldwide recognition, delivering dependable results from basic to demanding applications.

This insert helps streamline internal threading work by simplifying setup, reducing downtime, and delivering consistent thread quality across standards. With Carmex, you can rely on steady performance across everyday production and more demanding tasks, supporting better throughput and confidence in every project.

Part Numbers

Protool Part Number
11IRB12UNBMA
Brand
Carmex
Category
Thread Turning
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: Carmex Thread Turning Internal Inserts - BType - Unified - Right Hand

View full collection →

You are viewing 11IRB12UNBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
11IRB12UNBMA ViewingInternalRight HandUN (UNC UNF UNEF UNS)1211BMA£8.10 5 days
11IRB14UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1411BMA£8.10 5 days
11IRB16UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1611BMA£10.55 5 days
11IRB18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1811BMA£8.10 5 days
11IRB20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2011BMA£10.55 In Stock
11IRB24UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2411BMA£10.55 5 days
11IRB28UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2811BMA£8.10 5 days
11IRB32UNBMA InternalRight HandUN (UNC UNF UNEF UNS)3211BMA£8.10 5 days
16IRB10UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1016BMA£9.50 5 days
16IRB12UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1216BMA£9.50 5 days
16IRB14UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1416BMA£9.50 5 days
16IRB16UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1616BMA£9.50 5 days
16IRB18UNBMA InternalRight HandUN (UNC UNF UNEF UNS)1816BMA£9.50 5 days
16IRB20UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2016BMA£9.50 5 days
16IRB24UNBMA InternalRight HandUN (UNC UNF UNEF UNS)2416BMA£9.50 5 days
16IRB8UNBMA InternalRight HandUN (UNC UNF UNEF UNS)816BMA£9.50 5 days

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