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16IL56WBMA - Carmex Thread Turning Internal Insert - W (BSW BSF BSP BSB) - Left Hand
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | W (BSW BSF BSP BSB) |
| Pitch | 56 |
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Carmex Thread Turning Internal Insert, Left Hand, W variant (BSW BSF BSP BSB) is designed for precise internal threading across a wide range of standard threads. The triangular laydown geometry provides stable cutting action and predictable results, making it a reliable choice for both production environments and DIY projects. The insert is intended for engineers, machinists, and hobbyists who need consistent internal threads with minimal setup.
Ideal for internal threading tasks in housings, fittings, and components, this insert supports efficient setup and quick changeovers while delivering dependable performance across basic to more demanding applications.
- Broad compatibility with common thread standards: Covers BSW, BSF, BSP, and BSB internal threads in left-hand orientation, helping you complete projects with fewer inserts and reduced setup steps.
- Durable laydown triangular geometry: Triangular insert shape provides a stable cutting edge, improved chip control, and longer tool life for reliable internal threading across materials.
- Versatile performance from basic to demanding tasks: From simple pilot-hole threading to tight-tolerance internal threads, you get consistent results with minimal rework and downtime.
Designed to boost productivity, the Carmex Thread Turning Internal Insert delivers clean, accurate internal threads with minimal rework. Its broad standards compatibility and durable geometry support steady, reliable performance across a variety of materials and applications, helping you meet production deadlines with confidence.
Part Numbers
- Protool Part Number
- 16IL56WBMA
- 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 16IL56WBMA. 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 | 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 Viewing | 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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