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11IR28WBMA - Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 28 |
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Carmex Thread Turning Internal Insert, W series, is a compact solution for creating clean internal threads on right-hand components. It supports BSW, BSF, BSP, and BSB thread standards, making it a versatile choice for shops that handle a wide mix of projects. Whether you’re a design engineer, a machinist, or a hobbyist, this insert helps you achieve precise thread forms with minimal setup.
Its laydown triangular geometry provides stable cutting and excellent chip control, reducing chatter and helping you maintain consistent thread quality across a range of materials and depths of cut. The design is optimized for reliable performance in both light and more demanding threading tasks, making it suitable for basic to challenging applications.
- Broad thread-standard compatibility: Covers BSW, BSF, BSP, and BSB internal threading needs, enabling you to tackle most today’s jobs with a single insert.
- Laydown triangular geometry for stability: Triangular laydown shape delivers stable cutting, improved chip control, and consistent thread formation across materials.
- Reliable performance across demanding tasks: Built for durability in both simple and challenging applications, providing repeatable thread profiles with reduced rework.
This insert helps streamline workflows by reducing tool changes, expanding capability with one insert, and delivering dependable internal threads with clean finishes—so you can complete more work efficiently and with confidence.
Part Numbers
- Protool Part Number
- 11IR28WBMA
- 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.
Full Range: Carmex Thread Turning Internal Inserts - Whitworth - Right/Left Hand
View full collection →You are viewing 11IR28WBMA. 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 | £8.90 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 06IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 6 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 06IR18WBXC | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 6 | BXC | £11.60 per item · pack of 10 | 5 days | Sold in packs of 10 |
| 06IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 6 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 06IR20WBXC | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 6 | BXC | £11.60 per item · pack of 10 | 5 days | Sold in packs of 10 |
| 06IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 6 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 06IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 6 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 08IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 8 | BMA | £8.90 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 08IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 8 | BMA | £8.90 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 08IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 8 | BMA | £13.88 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 08IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 8 | BMA | £8.90 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 08IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 8 | BMA | £8.90 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 08IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 8 | BMA | £11.60 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 08IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 8 | BMA | £11.60 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 08IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 8 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 08IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 8 | BMA | £11.60 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 08IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 8 | BMA | £11.60 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 08IR28WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 8 | BMA | £11.60 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IL11WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 11 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL12WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 12 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL14WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 14 | 11 | BMA | £10.55 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL16WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 16 | 11 | BMA | £10.55 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 11 | BMA | £10.55 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 11 | BMA | £8.10 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 11IL22WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 22 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 11 | BMA | £8.10 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 11IL26WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 26 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL32WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 32 | 11 | BMA | £8.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL36WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 36 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL40WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 40 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL48WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 48 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL56WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 56 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL60WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 60 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IL72WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 72 | 11 | BMA | £10.53 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 11IR11WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 11 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR12WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 12 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR14WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 14 | 11 | BMA | £10.55 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 11 | BMA | £10.55 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR28WBMA Viewing | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 11 | BMA | £10.55 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR32WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 32 | 11 | BMA | £10.55 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR36WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 36 | 11 | BMA | £13.68 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 11IR40WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 40 | 11 | BMA | £10.55 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR48WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 48 | 11 | BMA | £10.53 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR56WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 56 | 11 | BMA | £10.53 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR60WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 60 | 11 | BMA | £10.53 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 11IR72WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 72 | 11 | BMA | £10.53 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 16IL10WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 10 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL11WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 11 | 16 | BMA | £9.50 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL12WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 12 | 16 | BMA | £9.50 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL14WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 14 | 16 | BMA | £9.50 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL16WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 16 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL18WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 18 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL19WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 19 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL20WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 20 | 16 | BMA | £9.50 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL22WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 22 | 16 | BMA | £9.50 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 16IL24WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 24 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL26WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 26 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL28WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 28 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL32WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 32 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL36WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 36 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL40WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 40 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL48WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 48 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL56WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 56 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL60WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 60 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL72WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 72 | 16 | BMA | £9.47 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL8WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 8 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IL9WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 9 | 16 | BMA | £7.29 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16IR10WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 10 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR11WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 11 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR12WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 12 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR14WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 14 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR16WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 16 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR18WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 18 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR19WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 19 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR20WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 20 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR22WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 22 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR24WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 24 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR26WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 26 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR28WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 28 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR32WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 32 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR36WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 36 | 16 | BMA | £12.31 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR40WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 40 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR48WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 48 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR56WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 56 | 16 | BMA | £9.47 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 16IR60WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 60 | 16 | BMA | £9.47 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 16IR72WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 72 | 16 | BMA | £9.47 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 16IR8WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 8 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16IR9WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 9 | 16 | BMA | £9.50 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 22IL5WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 5 | 22 | BMA | £10.69 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 22IL6WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 6 | 22 | BMA | £10.69 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 22IL7WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 7 | 22 | BMA | £10.69 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 22IR5WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 5 | 22 | BMA | £13.93 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 22IR6WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 6 | 22 | BMA | £13.93 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 22IR7WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 7 | 22 | BMA | £13.93 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 27IL4.5WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 4.5 | 27 | BMA | £15.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 27IL4WBMA | Internal | Left Hand | W (BSW BSF BSP BSB) | 4 | 27 | BMA | £15.10 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 27IR4.5WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 4.5 | 27 | BMA | £15.10 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 27IR4WBMA | Internal | Right Hand | W (BSW BSF BSP BSB) | 4 | 27 | BMA | £19.64 per item · pack of 2 | In Stock | Sold in packs of 2 |
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