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Carmex Thread Turning Internal Insert - American Butress - Left Hand - 16IL12ABUTBMA
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | American Butress |
| Pitch | 12 |
| Insert Size | 16 |
| Grade | BMA |
Learn more about Klarna
The Carmex Thread Turning Internal Insert is a precision tool designed for internal thread turning on cylindrical workpieces. This Left Hand American Butress insert (16IL12ABUTBMA) sits within our industry-leading range, built to cover a wide variety of thread standards with a single, reliable solution.
Designed with a laydown triangular geometry, these inserts deliver stable, consistent cutting across basic to demanding applications. The robust seating and geometry help simplify setups, reduce tool changes, and keep production running smoothly on mixed-thread jobs.
- Broad thread-standard compatibility: Covers the majority of internal thread standards with one insert, simplifying planning and reducing downtime on multi-thread tasks.
- Laydown triangular geometry for stable cutting: Evenly distributes cutting forces for a smoother finish and longer insert life, improving reliability across materials.
- Left-hand threading support: Specifically engineered for left-hand internal threads, enabling versatile setups and dependable performance in common machining scenarios.
With this insert, you gain a dependable, versatile tool that streamlines threading operations, delivering consistent, clean internal threads from simple to more challenging jobs. Built to endure busy shop floors, it helps you complete projects more efficiently, with fewer interruptions and improved overall quality of threaded parts.
| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | American Butress |
| Pitch | 12 |
| 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.
Full Range: Carmex Thread Turning Internal Inserts - American Buttress - Right/Left Hand
View full collection →You are viewing 16IL12ABUTBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 11IR16ABUTBMA | Internal | Right Hand | American Butress | 16 | 11 | BMA | £10.90 | In Stock | |
| 11IR20ABUTBMA | Internal | Right Hand | American Butress | 20 | 11 | BMA | £10.90 | 5 days | |
| 16IL10ABUTBMA | Internal | Left Hand | American Butress | 10 | 16 | BMA | £10.90 | 5 days | |
| 16IL12ABUTBMA Viewing | Internal | Left Hand | American Butress | 12 | 16 | BMA | £10.72 | In Stock | |
| 16IL16ABUTBMA | Internal | Left Hand | American Butress | 16 | 16 | BMA | £10.90 | 5 days | |
| 16IL20ABUTBMA | Internal | Left Hand | American Butress | 20 | 16 | BMA | £10.90 | 5 days | |
| 16IR10ABUTBMA | Internal | Right Hand | American Butress | 10 | 16 | BMA | £10.72 | In Stock | |
| 16IR12ABUTBMA | Internal | Right Hand | American Butress | 12 | 16 | BMA | £10.72 | In Stock | |
| 16IR16ABUTBMA | Internal | Right Hand | American Butress | 16 | 16 | BMA | £10.72 | In Stock | |
| 16IR20ABUTBMA | Internal | Right Hand | American Butress | 20 | 16 | BMA | £10.90 | 5 days | |
| 22IL6ABUTBMA | Internal | Left Hand | American Butress | 6 | 22 | BMA | £16.09 | 5 days | |
| 22IL8ABUTBMA | Internal | Left Hand | American Butress | 8 | 22 | BMA | £16.09 | 5 days | |
| 22IR6ABUTBMA | Internal | Right Hand | American Butress | 6 | 22 | BMA | £15.80 | 5 days | |
| 22IR8ABUTBMA | Internal | Right Hand | American Butress | 8 | 22 | BMA | £15.80 | In Stock |
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