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Carmex Thread Turning External Insert - Metric - Right Hand - 22ER4.5ISOBLU
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | Metric |
| Pitch | 4.5 |
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The Carmex Thread Turning External Insert is a metric, right-hand turning insert designed for external thread production. Its laydown triangular geometry provides multiple cutting edges and stable engagement, making it an ideal choice for engineers, machinists, and shop floor technicians who need reliable, consistent thread results.
This right-hand 22ER4.5 ISOBLU variant is built to cover a broad spectrum of thread standards in use today. It delivers dependable performance across basic to demanding threading tasks, helping you standardize tooling and simplify inventory without sacrificing accuracy or finish quality.
- Three cutting edges for longer tool life: The triangular laydown geometry gives you multiple usable edges, enabling easy indexing and extended service before replacement, which reduces downtime and maintenance time.
- Broad thread standard compatibility: Designed to address the majority of metric thread forms, simplifying setup and letting you tackle diverse projects with a single insert family.
- ISOBLU coating for wear resistance: The ISOBLU coating enhances wear resistance and heat tolerance, promoting smoother cuts, cleaner finishes, and more predictable performance in a variety of materials.
By choosing this Carmex external thread turning insert, you gain a reliable, versatile tool that supports faster setup, consistent thread quality, and longer productive runs. Its robust geometry and coating work together to keep your operations efficient, whether you’re refining a prototype or running high-volume production with tight tolerances.
Part Numbers
- Protool Part Number
- 22ER4.5ISOBLU
- 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.



