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Carmex Thread Turning Internal Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 11IR18UNBMA
SKU:11IR18UNBMA
Carmex Thread Turning Internal Insert - UN (UNC, UNF, UNEF, UNS) - Right Hand - 11IR18UNBMA is a versatile internal threading insert designed to handle a wide range of UN thread standards with a ...
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Material Compatibility
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Specifications at a glance
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Download Cutting Data
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 18 |
£10.55
Prices shown ex. VAT
In Stock— only 9 left
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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Description
Carmex Thread Turning Internal Insert - UN (UNC, UNF, UNEF, UNS) - Right Hand - 11IR18UNBMA is a versatile internal threading insert designed to handle a wide range of UN thread standards with a single, reliable tool. This laydown triangular insert is optimized for internal thread turning and is suited for both straightforward and demanding jobs, helping you produce clean, accurate threads with confidence.
- Universal UN thread compatibility: Compatible with UNC, UNF, UNEF, and UNS internal thread standards using a right‑hand orientation, reducing the need for multiple inserts and simplifying stock management.
- Triangular laydown geometry for stability: Multi‑edge cutting geometry sits securely in the holder, improves chip control, and promotes smooth, chatter‑free cutting for consistent thread profiles.
- Durable performance for demanding tasks: Built to deliver reliable results across basic to challenging threading applications, with extended edge life and lower downtime.
This insert helps streamline threading workflows by enabling quick setup for the most common thread standards, reducing tool changes and inventory. With stable cutting action and dependable edge life, you’ll achieve clean, accurate internal threads more efficiently, improving overall productivity in both high‑volume production and repair environments.
Part Numbers
- Protool Part Number
- 11IR18UNBMA
- 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
Full Range: Carmex Thread Turning Internal Inserts - Unified - Right/Left Hand
View full collection →You are viewing 11IR18UNBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 06IL18UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 18 | 6 | BMA | £8.90 | 5 days | |
| 06IL18UNBXC | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 18 | 6 | BXC | £13.88 | 5 days | |
| 06IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 6 | BMA | £8.90 | 5 days | |
| 06IL20UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 20 | 6 | BMA | £8.90 | In Stock | |
| 06IL20UNBXC | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 20 | 6 | BXC | £13.88 | In Stock | |
| 06IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 6 | BMA | £8.90 | 5 days | |
| 06IL22WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 22 | 6 | BMA | £8.90 | 5 days | |
| 06IL24UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 24 | 6 | BMA | £13.93 | 5 days | |
| 06IL24UNBXC | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 24 | 6 | BXC | £13.88 | 5 days | |
| 06IL28UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 28 | 6 | BMA | £8.90 | 5 days | |
| 06IL28UNBXC | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 28 | 6 | BXC | £13.88 | 5 days | |
| 06IL32UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 32 | 6 | BMA | £13.93 | In Stock | |
| 06IL32UNBXC | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 32 | 6 | BXC | £13.88 | 5 days | |
| 06IR18UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 18 | 6 | BMA | £11.60 | In Stock | |
| 06IR18UNBXC | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 18 | 6 | BXC | £11.60 | In Stock | |
| 06IR20UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 20 | 6 | BMA | £11.60 | In Stock | |
| 06IR20UNBXC | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 20 | 6 | BXC | £11.60 | 5 days | |
| 06IR24UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 24 | 6 | BMA | £11.60 | 5 days | |
| 06IR28UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 28 | 6 | BMA | £11.60 | In Stock | |
| 06IR32UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 32 | 6 | BMA | £11.60 | In Stock | |
| 08IL14UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 14 | 8 | BMA | £13.88 | 5 days | |
| 08IL16UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 16 | 8 | BMA | £8.90 | 5 days | |
| 08IL18UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 18 | 8 | BMA | £13.88 | 5 days | |
| 08IL20UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 20 | 8 | BMA | £13.88 | 5 days | |
| 08IL24UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 24 | 8 | BMA | £13.88 | 5 days | |
| 08IL28UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 28 | 8 | BMA | £13.88 | 5 days | |
| 08IL32UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 32 | 8 | BMA | £13.88 | 5 days | |
| 08IR13UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 13 | 8 | BMA | £11.60 | In Stock | |
| 08IR14UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 14 | 8 | BMA | £11.60 | In Stock | |
| 08IR16UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 16 | 8 | BMA | £11.60 | 5 days | |
| 08IR18UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 18 | 8 | BMA | £11.60 | In Stock | |
| 08IR20UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 20 | 8 | BMA | £11.60 | In Stock | |
| 08IR24UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 24 | 8 | BMA | £11.60 | 5 days | |
| 08IR28UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 28 | 8 | BMA | £11.60 | 5 days | |
| 08IR32UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 32 | 8 | BMA | £11.60 | 5 days | |
| 11IL11UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 11 | 11 | BMA | £8.10 | 5 days | |
| 11IL12UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 12 | 11 | BMA | £8.10 | 5 days | |
| 11IL13UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 13 | 11 | BMA | £10.55 | 5 days | |
| 11IL14UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 14 | 11 | BMA | £8.10 | 5 days | |
| 11IL16UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 16 | 11 | BMA | £10.55 | In Stock | |
| 11IL18UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 18 | 11 | BMA | £10.55 | In Stock | |
| 11IL20UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 20 | 11 | BMA | £8.10 | 5 days | |
| 11IL24UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 24 | 11 | BMA | £8.10 | In Stock | |
| 11IL27UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 27 | 11 | BMA | £8.10 | 5 days | |
| 11IL28UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 28 | 11 | BMA | £10.55 | 5 days | |
| 11IL32UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 32 | 11 | BMA | £8.10 | 5 days | |
| 11IL36UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 36 | 11 | BMA | £10.53 | 5 days | |
| 11IL40UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 40 | 11 | BMA | £10.53 | 5 days | |
| 11IL44UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 44 | 11 | BMA | £10.53 | 5 days | |
| 11IL48UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 48 | 11 | BMA | £10.53 | 5 days | |
| 11IL56UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 56 | 11 | BMA | £10.53 | 5 days | |
| 11IL64UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 64 | 11 | BMA | £10.53 | 5 days | |
| 11IL72UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 72 | 11 | BMA | £10.53 | 5 days | |
| 11IR11UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 11 | 11 | BMA | £10.55 | 5 days | |
| 11IR12UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 12 | 11 | BMA | £10.55 | In Stock | |
| 11IR13UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 13 | 11 | BMA | £10.55 | In Stock | |
| 11IR14UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 14 | 11 | BMA | £10.55 | 5 days | |
| 11IR16UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 16 | 11 | BMA | £10.55 | In Stock | |
| 11IR18UNBMA Viewing | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 18 | 11 | BMA | £10.55 | In Stock | |
| 11IR20UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 20 | 11 | BMA | £10.55 | 5 days | |
| 11IR24UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 24 | 11 | BMA | £10.55 | In Stock | |
| 11IR27UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 27 | 11 | BMA | £10.55 | In Stock | |
| 11IR28UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 28 | 11 | BMA | £10.55 | In Stock | |
| 11IR32UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 32 | 11 | BMA | £10.55 | In Stock | |
| 11IR36UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 36 | 11 | BMA | £13.68 | In Stock | |
| 11IR40UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 40 | 11 | BMA | £10.55 | In Stock | |
| 11IR44UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 44 | 11 | BMA | £10.53 | 5 days | |
| 11IR48UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 48 | 11 | BMA | £13.68 | 5 days | |
| 11IR56UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 56 | 11 | BMA | £10.53 | 5 days | |
| 11IR64UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 64 | 11 | BMA | £10.53 | 5 days | |
| 11IR72UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 72 | 11 | BMA | £10.53 | 5 days | |
| 16IL10UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 10 | 16 | BMA | £9.50 | 5 days | |
| 16IL11.5UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 11.5 | 16 | BMA | £7.29 | 5 days | |
| 16IL11UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 11 | 16 | BMA | £9.50 | 5 days | |
| 16IL12UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 12 | 16 | BMA | £9.50 | 5 days | |
| 16IL13UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 13 | 16 | BMA | £9.50 | 5 days | |
| 16IL14UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 14 | 16 | BMA | £9.50 | 5 days | |
| 16IL16UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 16 | 16 | BMA | £9.50 | 5 days | |
| 16IL18UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 18 | 16 | BMA | £9.50 | 5 days | |
| 16IL20UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 20 | 16 | BMA | £9.50 | 5 days | |
| 16IL24UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 24 | 16 | BMA | £7.29 | In Stock | |
| 16IL27UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 27 | 16 | BMA | £7.29 | 5 days | |
| 16IL28UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 28 | 16 | BMA | £7.29 | 5 days | |
| 16IL32UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 32 | 16 | BMA | £7.29 | 5 days | |
| 16IL36UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 36 | 16 | BMA | £9.47 | 5 days | |
| 16IL40UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 40 | 16 | BMA | £9.47 | 5 days | |
| 16IL44UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 44 | 16 | BMA | £9.47 | 5 days | |
| 16IL48UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 48 | 16 | BMA | £9.47 | 5 days | |
| 16IL56UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 56 | 16 | BMA | £9.47 | 5 days | |
| 16IL64UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 64 | 16 | BMA | £9.47 | 5 days | |
| 16IL72UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 72 | 16 | BMA | £9.47 | 5 days | |
| 16IL8UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 8 | 16 | BMA | £9.50 | In Stock | |
| 16IL9UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 9 | 16 | BMA | £9.50 | 5 days | |
| 16IR10UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 10 | 16 | BMA | £9.50 | In Stock | |
| 16IR11.5UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 11.5 | 16 | BMA | £9.50 | In Stock | |
| 16IR11UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 11 | 16 | BMA | £9.50 | In Stock | |
| 16IR12UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 12 | 16 | BMA | £9.50 | In Stock | |
| 16IR13UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 13 | 16 | BMA | £9.50 | In Stock | |
| 16IR14UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 14 | 16 | BMA | £9.50 | In Stock | |
| 16IR16UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 16 | 16 | BMA | £9.50 | 5 days | |
| 16IR18UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 18 | 16 | BMA | £9.50 | In Stock | |
| 16IR20UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 20 | 16 | BMA | £9.50 | In Stock | |
| 16IR24UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 24 | 16 | BMA | £9.50 | In Stock | |
| 16IR27UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 27 | 16 | BMA | £9.50 | In Stock | |
| 16IR28UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 28 | 16 | BMA | £9.50 | In Stock | |
| 16IR32UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 32 | 16 | BMA | £9.50 | In Stock | |
| 16IR36UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 36 | 16 | BMA | £12.31 | In Stock | |
| 16IR40UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 40 | 16 | BMA | £12.31 | In Stock | |
| 16IR44UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 44 | 16 | BMA | £12.31 | 5 days | |
| 16IR48UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 48 | 16 | BMA | £12.31 | 5 days | |
| 16IR56UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 56 | 16 | BMA | £12.31 | 5 days | |
| 16IR64UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 64 | 16 | BMA | £12.31 | 5 days | |
| 16IR72UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 72 | 16 | BMA | £12.31 | 5 days | |
| 16IR8UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 8 | 16 | BMA | £9.50 | In Stock | |
| 16IR9UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 9 | 16 | BMA | £9.50 | In Stock | |
| 22IL5UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 5 | 22 | BMA | £10.69 | 5 days | |
| 22IL6UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 6 | 22 | BMA | £10.69 | 5 days | |
| 22IL7UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 7 | 22 | BMA | £10.69 | 5 days | |
| 22IR5UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 5 | 22 | BMA | £13.93 | 5 days | |
| 22IR6UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 6 | 22 | BMA | £13.93 | In Stock | |
| 22IR7UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 7 | 22 | BMA | £13.93 | In Stock | |
| 27IL4.5UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 4.5 | 27 | BMA | £15.10 | 5 days | |
| 27IL4UNBMA | Internal | Left Hand | UN (UNC UNF UNEF UNS) | 4 | 27 | BMA | £15.10 | 5 days | |
| 27IR4.5UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 4.5 | 27 | BMA | £19.64 | 5 days | |
| 27IR4UNBMA | Internal | Right Hand | UN (UNC UNF UNEF UNS) | 4 | 27 | BMA | £19.64 | 5 days |
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