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11IR0.75ISOK20 - Carmex Thread Turning Internal Insert - Metric - Right Hand
| Thread Type | Internal |
| Thread Direction | Right Hand |
| Thread Form | Metric |
| Pitch | 0.75 |
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The Carmex Thread Turning Internal Insert – Metric, Right Hand – 11IR0.75ISOK20 – is a high-performance tool insert designed for internal threading tasks. Its laydown triangular geometry is optimized to cover a wide range of metric thread standards, delivering consistent results from simple to demanding thread profiles.
Designed for engineers, buyers, tradespeople, hobbyists, and even non-technical users, this insert offers reliable performance with straightforward setup and predictable results for precise internal threads.
- Broad metric thread compatibility: Covers the majority of metric thread standards with a single insert, reducing tool changes and simplifying inventory.
- Laydown triangular geometry for stable cutting: Triangular laydown design provides smooth engagement, improved chip control, and steady cutting action for clean, accurate threads.
- Proven reliability for basic to demanding work: Part of Carmex’s industry-leading range, built to deliver consistent results across a wide range of threading tasks.
With the Carmex Thread Turning Internal Insert, you gain a reliable, versatile solution that streamlines internal threading tasks. Its broad compatibility means fewer tool changes and faster setup, while the stable cutting action helps achieve accurate thread profiles and smooth finishes. Built for everyday use, it supports steady performance across various job sizes and applications, helping you complete projects on time and to specification.
Part Numbers
- Protool Part Number
- 11IR0.75ISOK20
- 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.



