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Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IRB18UNBMA

Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16IRB18UNBMA

SKU:16IRB18UNBMA

Carmex Thread Turning Internal Insert is a laydown triangular insert optimized for internal threading. It supports UNC, UNF, UNEF, and UNS thread standards and is suitable for both basic and dema... Read more ↓
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Thread TypeInternal
Thread DirectionRight Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch18
Insert Size16
GradeBMA
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£9.50
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Carmex Thread Turning Internal Insert is a laydown triangular insert optimized for internal threading. It supports UNC, UNF, UNEF, and UNS thread standards and is suitable for both basic and demanding threading tasks.

With right‑hand cutting and the 16IRB18UNBMA designation, this insert is designed to integrate easily into existing toolholders and machining workflows, delivering reliable performance across a wide range of applications.

  • Broad thread‑standard compatibility: Supports UNC, UNF, UNEF, and UNS internal threads, enabling a single tool to cover multiple common standards and reduce tooling complexity.
  • Triangular laydown geometry: Provides stable seating and consistent cutting action, helping to minimize chatter and improve finish across varied threading tasks.
  • Right‑hand orientation: Designed for right‑hand threading operations, ensuring predictable cutting direction and straightforward setup in standard machining setups.

This insert is built to handle a wide range of threading jobs with dependable, repeatable results. By accommodating multiple thread standards in one tool and offering stable, easy setup, it helps streamline production, reduce tool changes, and maintain consistent thread quality from basic to demanding projects.

Thread Type Internal
Thread Direction Right Hand
Thread Form UN (UNC UNF UNEF UNS)
Pitch 18
Insert Size 16
Grade BMA

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.

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Full Range: Carmex Thread Turning Internal Inserts - BType - Unified - Right Hand

View full collection →

You are viewing 16IRB18UNBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
11IRB12UNBMA InternalRight 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 ViewingInternalRight 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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