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Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Left Hand - 16IL11WBMA
SKU:16IL11WBMA
The Carmex Thread Turning Internal Insert is a versatile cutting insert designed for internal threading across multiple standards. Its left-hand orientation and compatibility with BSW, BSF, BSP a...
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Specification
Download Cutting Data
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 11 |
| Insert Size | 16 |
| Grade | BMA |
£8.44
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
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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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The Carmex Thread Turning Internal Insert is a versatile cutting insert designed for internal threading across multiple standards. Its left-hand orientation and compatibility with BSW, BSF, BSP and BSB threads make it a flexible choice for engineers, machinists, and maintenance teams alike.
Part of Carmex's industry-leading range, these laydown triangular inserts are built to handle a wide spectrum of applications, from basic threading tasks to the most demanding ones, delivering reliable results and predictable performance.
- Broad thread standard compatibility: Works with BSW, BSF, BSP, and BSB internal threads, reducing the number of different inserts you need and simplifying setup.
- Left-hand threading optimization: Specifically designed for left-handed threads, providing consistent engagement and predictable results for these parts.
- Triangular laydown design: The laydown triangular geometry delivers stable cutting, effective chip control, and reliable performance across a wide range of thread sizes and applications.
By using the Carmex Thread Turning Internal Insert, you simplify tooling for internal threads across common standards, reduce tool inventory and setup time, and achieve consistent, accurate thread forms. The left-hand orientation is ideal for parts with left-handed threads, while the laydown geometry delivers smooth cutting and fewer reworks, helping you complete projects on time with dependable results.
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 11 |
| Insert Size | 16 |
| Grade | BMA |
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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 - Whitworth - Right/Left Hand
View full collection →You are viewing 16IL11WBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 06IL26WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 26 | 6 | BMA | £9.43 | 5 days | |
| 06IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 6 | BMA | £9.28 | In Stock | |
| 06IR18WBXC | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 6 | BXC | £9.28 | 5 days | |
| 06IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 6 | BMA | £9.28 | In Stock | |
| 06IR20WBXC | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 6 | BXC | £9.28 | 5 days | |
| 06IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 6 | BMA | £9.28 | In Stock | |
| 06IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 6 | BMA | £9.28 | In Stock | |
| 08IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 8 | BMA | £9.43 | 5 days | |
| 08IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 8 | BMA | £9.43 | In Stock | |
| 08IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 8 | BMA | £11.10 | 5 days | |
| 08IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 8 | BMA | £9.43 | In Stock | |
| 08IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 8 | BMA | £9.43 | 5 days | |
| 08IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 8 | BMA | £9.28 | 5 days | |
| 08IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 8 | BMA | £9.28 | 5 days | |
| 08IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 8 | BMA | £9.28 | In Stock | |
| 08IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 8 | BMA | £9.28 | 5 days | |
| 08IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 8 | BMA | £9.28 | 5 days | |
| 08IR28WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 8 | BMA | £9.28 | In Stock | |
| 11IL11WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 11 | 11 | BMA | £8.59 | 5 days | |
| 11IL12WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 12 | 11 | BMA | £8.59 | 5 days | |
| 11IL14WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 14 | 11 | BMA | £8.44 | 5 days | |
| 11IL16WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 16 | 11 | BMA | £8.44 | 5 days | |
| 11IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 11 | BMA | £8.59 | 5 days | |
| 11IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 11 | BMA | £8.44 | 5 days | |
| 11IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 11 | BMA | £8.59 | In Stock | |
| 11IL22WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 22 | 11 | BMA | £8.59 | 5 days | |
| 11IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 11 | BMA | £8.59 | In Stock | |
| 11IL26WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 26 | 11 | BMA | £8.59 | 5 days | |
| 11IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 11 | BMA | £8.59 | 5 days | |
| 11IL32WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 32 | 11 | BMA | £8.59 | 5 days | |
| 11IL36WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 36 | 11 | BMA | £11.16 | 5 days | |
| 11IL40WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 40 | 11 | BMA | £11.16 | 5 days | |
| 11IL48WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 48 | 11 | BMA | £11.16 | 5 days | |
| 11IL56WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 56 | 11 | BMA | £11.16 | 5 days | |
| 11IL60WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 60 | 11 | BMA | £11.16 | 5 days | |
| 11IL72WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 72 | 11 | BMA | £11.16 | 5 days | |
| 11IR11WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 11 | 11 | BMA | £8.44 | In Stock | |
| 11IR12WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 12 | 11 | BMA | £8.44 | In Stock | |
| 11IR14WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 14 | 11 | BMA | £8.44 | 5 days | |
| 11IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 11 | BMA | £8.44 | In Stock | |
| 11IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 11 | BMA | £8.44 | In Stock | |
| 11IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 11 | BMA | £8.44 | 5 days | |
| 11IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 11 | BMA | £8.44 | In Stock | |
| 11IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 11 | BMA | £8.44 | In Stock | |
| 11IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 11 | BMA | £8.44 | In Stock | |
| 11IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 11 | BMA | £8.44 | In Stock | |
| 11IR28WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 11 | BMA | £8.44 | In Stock | |
| 11IR32WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 32 | 11 | BMA | £8.44 | 5 days | |
| 11IR36WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 36 | 11 | BMA | £10.94 | In Stock | |
| 11IR40WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 40 | 11 | BMA | £8.44 | 5 days | |
| 11IR48WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 48 | 11 | BMA | £11.16 | 5 days | |
| 11IR56WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 56 | 11 | BMA | £11.16 | 5 days | |
| 11IR60WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 60 | 11 | BMA | £11.16 | 5 days | |
| 11IR72WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 72 | 11 | BMA | £11.16 | 5 days | |
| 16IL10WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 10 | 16 | BMA | £8.59 | 5 days | |
| 16IL11WBMA Viewing | Internal | Left Hand | W (BSW BSF BSP BSB) | 11 | 16 | BMA | £8.44 | 5 days | |
| 16IL12WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 12 | 16 | BMA | £8.44 | 5 days | |
| 16IL14WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 14 | 16 | BMA | £8.44 | 5 days | |
| 16IL16WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 16 | 16 | BMA | £8.59 | 5 days | |
| 16IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 16 | BMA | £8.59 | 5 days | |
| 16IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 16 | BMA | £8.59 | 5 days | |
| 16IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 16 | BMA | £8.44 | 5 days | |
| 16IL22WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 22 | 16 | BMA | £8.44 | In Stock | |
| 16IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 16 | BMA | £8.59 | 5 days | |
| 16IL26WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 26 | 16 | BMA | £8.59 | 5 days | |
| 16IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 16 | BMA | £8.59 | 5 days | |
| 16IL32WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 32 | 16 | BMA | £8.59 | 5 days | |
| 16IL36WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 36 | 16 | BMA | £11.16 | 5 days | |
| 16IL40WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 40 | 16 | BMA | £11.16 | 5 days | |
| 16IL48WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 48 | 16 | BMA | £11.16 | 5 days | |
| 16IL56WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 56 | 16 | BMA | £11.16 | 5 days | |
| 16IL60WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 60 | 16 | BMA | £11.16 | 5 days | |
| 16IL72WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 72 | 16 | BMA | £11.16 | 5 days | |
| 16IL8WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 8 | 16 | BMA | £8.59 | 5 days | |
| 16IL9WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 9 | 16 | BMA | £8.59 | 5 days | |
| 16IR10WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 10 | 16 | BMA | £8.44 | In Stock | |
| 16IR11WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 11 | 16 | BMA | £8.44 | In Stock | |
| 16IR12WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 12 | 16 | BMA | £8.44 | In Stock | |
| 16IR14WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 14 | 16 | BMA | £8.44 | In Stock | |
| 16IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 16 | BMA | £8.44 | In Stock | |
| 16IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 16 | BMA | £8.44 | In Stock | |
| 16IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 16 | BMA | £8.44 | In Stock | |
| 16IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 16 | BMA | £8.44 | In Stock | |
| 16IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 16 | BMA | £8.44 | In Stock | |
| 16IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 16 | BMA | £8.44 | In Stock | |
| 16IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 16 | BMA | £8.44 | In Stock | |
| 16IR28WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 16 | BMA | £8.44 | In Stock | |
| 16IR32WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 32 | 16 | BMA | £8.44 | In Stock | |
| 16IR36WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 36 | 16 | BMA | £10.94 | In Stock | |
| 16IR40WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 40 | 16 | BMA | £8.44 | In Stock | |
| 16IR48WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 48 | 16 | BMA | £8.44 | In Stock | |
| 16IR56WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 56 | 16 | BMA | £11.16 | 5 days | |
| 16IR60WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 60 | 16 | BMA | £11.16 | 5 days | |
| 16IR72WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 72 | 16 | BMA | £11.16 | 5 days | |
| 16IR8WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 8 | 16 | BMA | £8.44 | In Stock | |
| 16IR9WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 9 | 16 | BMA | £8.44 | In Stock | |
| 22IL5WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 5 | 22 | BMA | £12.59 | 5 days | |
| 22IL6WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 6 | 22 | BMA | £12.59 | 5 days | |
| 22IL7WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 7 | 22 | BMA | £12.59 | 5 days | |
| 22IR5WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 5 | 22 | BMA | £12.38 | In Stock | |
| 22IR6WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 6 | 22 | BMA | £12.38 | In Stock | |
| 22IR7WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 7 | 22 | BMA | £12.38 | In Stock | |
| 27IL4.5WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 4.5 | 27 | BMA | £17.79 | 5 days | |
| 27IL4WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 4 | 27 | BMA | £17.79 | 5 days | |
| 27IR4.5WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 4.5 | 27 | BMA | £17.79 | 5 days | |
| 27IR4WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 4 | 27 | BMA | £17.46 | In Stock |
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