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16ER20ABUTBMA - Carmex Thread Turning External Insert - American Butress - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | American Butress |
| Pitch | 20 |
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Description
Our industry-leading range of thread turning inserts is recognized worldwide. These high-quality laydown triangular inserts can provide a solution for the majority of the thread standards available today. The Carmex Thread Turning External Insert - American Butress - Right Hand - 16ER20ABUTBMA is designed for external turning operations, delivering dependable performance across a wide range of threading tasks.
Built to support professionals from engineers to hobbyists, this right-hand external insert helps you achieve consistent thread profiles with minimal setup. Its versatile design handles everything from basic threading work to the most demanding applications, reducing the need for multiple different inserts.
- Broad thread standard compatibility: Designed to cover the majority of thread standards available today, helping you complete more jobs with a single insert and reducing stock variety.
- Laydown triangular geometry for stable cutting: The laydown geometry fosters stable engagement during external turning, promoting consistent thread form and clean finishes across a range of materials.
- Trusted Carmex quality and durability: Part of an industry-leading range recognized worldwide, built for reliable performance and long-lasting use in daily shop conditions.
With this insert, you’ll simplify tool management, speed up changeovers, and consistently produce accurate threads. The broad compatibility means fewer tool changes and more time on productive work, while the durable construction supports repeatable results across jobs—from maintenance tasks to production runs.
Part Numbers
- Protool Part Number
- 16ER20ABUTBMA
- 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 External Inserts - American Buttress - Right/Left Hand
View full collection →You are viewing 16ER20ABUTBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 16EL12ABUTBMA | External | Left Hand | American Butress | 12 | 16 | BMA | £12.06 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16EL16ABUTBMA | External | Left Hand | American Butress | 16 | 16 | BMA | £12.06 per item · pack of 5 | In Stock | Sold in packs of 5 |
| 16EL20ABUTBMA | External | Left Hand | American Butress | 20 | 16 | BMA | £9.25 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 16ER10ABUTBMA | External | Right Hand | American Butress | 10 | 16 | BMA | £12.06 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16ER12ABUTBMA | External | Right Hand | American Butress | 12 | 16 | BMA | £12.06 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16ER16ABUTBMA | External | Right Hand | American Butress | 16 | 16 | BMA | £12.06 per item · pack of 2 | In Stock | Sold in packs of 2 |
| 16ER20ABUTBMA Viewing | External | Right Hand | American Butress | 20 | 16 | BMA | £9.25 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 22EL6ABUTBMA | External | Left Hand | American Butress | 6 | 22 | BMA | £17.78 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 22EL8ABUTBMA | External | Left Hand | American Butress | 8 | 22 | BMA | £13.66 per item · pack of 5 | 5 days | Sold in packs of 5 |
| 22ER6ABUTBMA | External | Right Hand | American Butress | 6 | 22 | BMA | £13.66 per item · pack of 2 | 5 days | Sold in packs of 2 |
| 22ER8ABUTBMA | External | Right Hand | American Butress | 8 | 22 | BMA | £17.78 per item · pack of 2 | In Stock | Sold in packs of 2 |
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