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Carmex Thread Turning Internal Insert - Metric - Left Hand - 16IL3.5ISOBMA
SKU:16IL3.5ISOBMA
The Carmex Thread Turning Internal Insert (Metric, Left Hand) – 16IL3.5ISOBMA – is a high‑quality internal threading insert designed to cover a broad range of thread standards. This laydown triang...
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Material Compatibility
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Specifications at a glance
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| Thread Type | Internal |
| Thread Direction | Left Hand |
| Thread Form | Metric |
| Pitch | 3.5 |
£9.50
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
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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Description
The Carmex Thread Turning Internal Insert (Metric, Left Hand) – 16IL3.5ISOBMA – is a high‑quality internal threading insert designed to cover a broad range of thread standards. This laydown triangular insert is part of Carmex's industry‑leading range and is built to deliver reliable results across common thread standards in today’s workshop.
Suitable for engineers, buyers, tradespeople, hobbyists, and precision machinists, it supports applications from simple to more demanding threading tasks, helping you complete internal threads with confidence.
- Broad compatibility with most thread standards: The insert provides a solution for the majority of thread standards available today, simplifying tool selection and enabling a single tool to handle many jobs.
- Stable laydown triangular geometry: The laydown triangular design seats securely in the holder, promoting consistent engagement and reliable results across a wide range of materials.
- Metric, left‑hand threading support: Specifically designed for metric left‑hand threads, expanding your threading options and reducing the need to hunt for alternate inserts.
With this insert, you gain a versatile, dependable tool for internal threading that helps streamline setups, improve workflow, and deliver consistent results across a broad spectrum of projects.
Part Numbers
- Protool Part Number
- 16IL3.5ISOBMA
- 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.
Ask our technical team about this tool
Full Range: Carmex Thread Turning Internal Inserts - ISO - Right/Left Hand
View full collection →You are viewing 16IL3.5ISOBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 06IL0.5ISOBMA | Internal | Left Hand | Metric | 0.5 | 6 | BMA | £11.58 | 5 days | |
| 06IL0.5ISOBXC | Internal | Left Hand | Metric | 0.5 | 6 | BXC | £13.88 | 5 days | |
| 06IL0.75ISOBMA | Internal | Left Hand | Metric | 0.75 | 6 | BMA | £11.58 | 5 days | |
| 06IL0.75ISOBXC | Internal | Left Hand | Metric | 0.75 | 6 | BXC | £13.88 | 5 days | |
| 06IL1.0ISOBMA | Internal | Left Hand | Metric | 1 | 6 | BMA | £8.90 | In Stock | |
| 06IL1.0ISOBXC | Internal | Left Hand | Metric | 1 | 6 | BXC | £13.88 | 5 days | |
| 06IL1.25ISOBMA | Internal | Left Hand | Metric | 1.25 | 6 | BMA | £8.90 | 5 days | |
| 06IL1.25ISOBXC | Internal | Left Hand | Metric | 1.25 | 6 | BXC | £13.88 | 5 days | |
| 06IR0.5ISOBMA | Internal | Right Hand | Metric | 0.5 | 6 | BMA | £11.60 | In Stock | |
| 06IR0.5ISOBXC | Internal | Right Hand | Metric | 0.5 | 6 | BXC | £11.60 | 5 days | |
| 06IR0.75ISOBMA | Internal | Right Hand | Metric | 0.75 | 6 | BMA | £11.60 | 5 days | |
| 06IR0.75ISOBXC | Internal | Right Hand | Metric | 0.75 | 6 | BXC | £11.60 | 5 days | |
| 06IR1.0ISOBMA | Internal | Right Hand | Metric | 1 | 6 | BMA | £11.60 | In Stock | |
| 06IR1.0ISOBXC | Internal | Right Hand | Metric | 1 | 6 | BXC | £11.60 | 5 days | |
| 06IR1.25ISOBMA | Internal | Right Hand | Metric | 1.25 | 6 | BMA | £11.60 | 5 days | |
| 06IR1.25ISOBXC | Internal | Right Hand | Metric | 1.25 | 6 | BXC | £11.60 | 5 days | |
| 08IL0.5ISOBMA | Internal | Left Hand | Metric | 0.5 | 8 | BMA | £11.58 | 5 days | |
| 08IL0.75ISOBMA | Internal | Left Hand | Metric | 0.75 | 8 | BMA | £11.58 | 5 days | |
| 08IL1.0ISOBMA | Internal | Left Hand | Metric | 1 | 8 | BMA | £13.88 | 5 days | |
| 08IL1.25ISOBMA | Internal | Left Hand | Metric | 1.25 | 8 | BMA | £8.90 | In Stock | |
| 08IL1.5ISOBMA | Internal | Left Hand | Metric | 1.5 | 8 | BMA | £13.88 | 5 days | |
| 08IL1.75ISOBMA | Internal | Left Hand | Metric | 1.75 | 8 | BMA | £13.88 | 5 days | |
| 08IR0.25ISOBMA | Internal | Right Hand | Metric | 0.25 | 8 | BMA | £15.05 | In Stock | |
| 08IR0.5ISOBMA | Internal | Right Hand | Metric | 0.5 | 8 | BMA | £11.60 | In Stock | |
| 08IR0.75ISOBMA | Internal | Right Hand | Metric | 0.75 | 8 | BMA | £11.60 | In Stock | |
| 08IR1.0ISOBMA | Internal | Right Hand | Metric | 1 | 8 | BMA | £11.60 | In Stock | |
| 08IR1.25ISOBMA | Internal | Right Hand | Metric | 1.25 | 8 | BMA | £11.60 | In Stock | |
| 08IR1.5ISOBMA | Internal | Right Hand | Metric | 1.5 | 8 | BMA | £11.60 | 5 days | |
| 08IR1.75ISOBMA | Internal | Right Hand | Metric | 1.75 | 8 | BMA | £11.60 | In Stock | |
| 11IL0.35ISOBMA | Internal | Left Hand | Metric | 0.35 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.45ISOBMA | Internal | Left Hand | Metric | 0.45 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.4ISOBMA | Internal | Left Hand | Metric | 0.4 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.5ISOBMA | Internal | Left Hand | Metric | 0.5 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.6ISOBMA | Internal | Left Hand | Metric | 0.6 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.75ISOBMA | Internal | Left Hand | Metric | 0.75 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.7ISOBMA | Internal | Left Hand | Metric | 0.7 | 11 | BMA | £10.53 | 5 days | |
| 11IL0.8ISOBMA | Internal | Left Hand | Metric | 0.8 | 11 | BMA | £8.10 | In Stock | |
| 11IL1.0ISOBMA | Internal | Left Hand | Metric | 1 | 11 | BMA | £10.55 | 5 days | |
| 11IL1.25ISOBMA | Internal | Left Hand | Metric | 1.25 | 11 | BMA | £10.55 | 5 days | |
| 11IL1.5ISOBMA | Internal | Left Hand | Metric | 1.5 | 11 | BMA | £10.55 | 5 days | |
| 11IL1.75ISOBMA | Internal | Left Hand | Metric | 1.75 | 11 | BMA | £8.10 | 5 days | |
| 11IR0.35ISOBMA | Internal | Right Hand | Metric | 0.35 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.45ISOBMA | Internal | Right Hand | Metric | 0.45 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.4ISOBMA | Internal | Right Hand | Metric | 0.4 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.5ISOBMA | Internal | Right Hand | Metric | 0.5 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.6ISOBMA | Internal | Right Hand | Metric | 0.6 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.75ISOBMA | Internal | Right Hand | Metric | 0.75 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.7ISOBMA | Internal | Right Hand | Metric | 0.7 | 11 | BMA | £13.68 | In Stock | |
| 11IR0.8ISOBMA | Internal | Right Hand | Metric | 0.8 | 11 | BMA | £10.55 | In Stock | |
| 11IR1.0ISOBMA | Internal | Right Hand | Metric | 1 | 11 | BMA | £10.55 | In Stock | |
| 11IR1.25ISOBMA | Internal | Right Hand | Metric | 1.25 | 11 | BMA | £10.55 | 5 days | |
| 11IR1.5ISOBMA | Internal | Right Hand | Metric | 1.5 | 11 | BMA | £10.55 | In Stock | |
| 11IR2.5ISOBMA | Internal | Right Hand | Metric | 2.5 | 11 | BMA | £10.55 | In Stock | |
| 16IL0.35ISOBMA | Internal | Left Hand | Metric | 0.35 | 16 | BMA | £9.47 | 5 days | |
| 16IL0.45ISOBMA | Internal | Left Hand | Metric | 0.45 | 16 | BMA | £9.47 | 5 days | |
| 16IL0.4ISOBMA | Internal | Left Hand | Metric | 0.4 | 16 | BMA | £9.47 | 5 days | |
| 16IL0.5ISOBMA | Internal | Left Hand | Metric | 0.5 | 16 | BMA | £12.31 | 5 days | |
| 16IL0.6ISOBMA | Internal | Left Hand | Metric | 0.6 | 16 | BMA | £9.47 | 5 days | |
| 16IL0.75ISOBMA | Internal | Left Hand | Metric | 0.75 | 16 | BMA | £12.31 | 5 days | |
| 16IL0.7ISOBMA | Internal | Left Hand | Metric | 0.7 | 16 | BMA | £9.47 | 5 days | |
| 16IL0.8ISOBMA | Internal | Left Hand | Metric | 0.8 | 16 | BMA | £7.29 | 5 days | |
| 16IL1.0ISOBMA | Internal | Left Hand | Metric | 1 | 16 | BMA | £9.50 | 5 days | |
| 16IL1.25ISOBMA | Internal | Left Hand | Metric | 1.25 | 16 | BMA | £9.50 | 5 days | |
| 16IL1.5ISOBMA | Internal | Left Hand | Metric | 1.5 | 16 | BMA | £9.50 | In Stock | |
| 16IL1.75ISOBMA | Internal | Left Hand | Metric | 1.75 | 16 | BMA | £9.50 | 5 days | |
| 16IL2.0ISOBMA | Internal | Left Hand | Metric | 2 | 16 | BMA | £9.50 | 5 days | |
| 16IL2.5ISOBMA | Internal | Left Hand | Metric | 2.5 | 16 | BMA | £9.50 | 5 days | |
| 16IL3.0ISOBMA | Internal | Left Hand | Metric | 3 | 16 | BMA | £9.50 | 5 days | |
| 16IL3.5ISOBMA Viewing | Internal | Left Hand | Metric | 3.5 | 16 | BMA | £9.50 | 5 days | |
| 16IR0.35ISOBMA | Internal | Right Hand | Metric | 0.35 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.45ISOBMA | Internal | Right Hand | Metric | 0.45 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.4ISOBMA | Internal | Right Hand | Metric | 0.4 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.5ISOBMA | Internal | Right Hand | Metric | 0.5 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.6ISOBMA | Internal | Right Hand | Metric | 0.6 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.75ISOBMA | Internal | Right Hand | Metric | 0.75 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.7ISOBMA | Internal | Right Hand | Metric | 0.7 | 16 | BMA | £12.31 | In Stock | |
| 16IR0.8ISOBMA | Internal | Right Hand | Metric | 0.8 | 16 | BMA | £9.50 | In Stock | |
| 16IR1.0ISOBMA | Internal | Right Hand | Metric | 1 | 16 | BMA | £9.50 | In Stock | |
| 16IR1.25ISOBMA | Internal | Right Hand | Metric | 1.25 | 16 | BMA | £9.50 | In Stock | |
| 16IR1.5ISOBMA | Internal | Right Hand | Metric | 1.5 | 16 | BMA | £9.50 | In Stock | |
| 16IR1.75ISOBMA | Internal | Right Hand | Metric | 1.75 | 16 | BMA | £9.50 | In Stock | |
| 16IR2.0ISOBMA | Internal | Right Hand | Metric | 2 | 16 | BMA | £9.50 | 5 days | |
| 16IR2.5ISOBMA | Internal | Right Hand | Metric | 2.5 | 16 | BMA | £9.50 | In Stock | |
| 16IR3.0ISOBMA | Internal | Right Hand | Metric | 3 | 16 | BMA | £9.50 | In Stock | |
| 16IR3.5ISOBMA | Internal | Right Hand | Metric | 3.5 | 16 | BMA | £9.50 | In Stock | |
| 22IL3.5ISOBMA | Internal | Left Hand | Metric | 3.5 | 22 | BMA | £13.93 | 5 days | |
| 22IL4.0ISOBMA | Internal | Left Hand | Metric | 4 | 22 | BMA | £13.93 | 5 days | |
| 22IL4.5ISOBMA | Internal | Left Hand | Metric | 4.5 | 22 | BMA | £13.93 | 5 days | |
| 22IL5.0ISOBMA | Internal | Left Hand | Metric | 5 | 22 | BMA | £13.93 | 5 days | |
| 22IL5.5ISOBMA | Internal | Left Hand | Metric | 5.5 | 22 | BMA | £10.69 | 5 days | |
| 22IL6.0ISOBMA | Internal | Left Hand | Metric | 6 | 22 | BMA | £10.69 | 5 days | |
| 22IR3.5ISOBMA | Internal | Right Hand | Metric | 3.5 | 22 | BMA | £13.93 | 5 days | |
| 22IR4.0ISOBMA | Internal | Right Hand | Metric | 4 | 22 | BMA | £13.93 | In Stock | |
| 22IR4.5ISOBMA | Internal | Right Hand | Metric | 4.5 | 22 | BMA | £13.93 | 5 days | |
| 22IR5.0ISOBMA | Internal | Right Hand | Metric | 5 | 22 | BMA | £13.93 | In Stock | |
| 22IR5.5ISOBMA | Internal | Right Hand | Metric | 5.5 | 22 | BMA | £13.93 | In Stock | |
| 22IR6.0ISOBMA | Internal | Right Hand | Metric | 6 | 22 | BMA | £13.93 | In Stock | |
| 27IL5.5ISOBMA | Internal | Left Hand | Metric | 5.5 | 27 | BMA | £15.10 | 5 days | |
| 27IL6.0ISOBMA | Internal | Left Hand | Metric | 6 | 27 | BMA | £19.64 | 5 days | |
| 27IR5.5ISOBMA | Internal | Right Hand | Metric | 5.5 | 27 | BMA | £19.64 | 5 days | |
| 27IR6.0ISOBMA | Internal | Right Hand | Metric | 6 | 27 | BMA | £19.64 | In Stock |
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