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Carmex Vertical Milling CMT Three Flute Insert - Threading - C18I3TRMT7
| Application | Threading |
| Thread Form | Trapez |
| Internal or External | Internal |
| Insert Diameter | 17.8 |
| Pitch | 3 |
| Number of Flutes | 3 |
Learn more about Klarna
Carmex Vertical Milling CMT Three Flute Insert - Threading (C18I3TRMT7) is a vertical milling indexable insert designed to handle threading, grooves, chamfers, and more when paired with compatible toolholders. It enables efficient, flexible operations across a wide range of machining tasks.
Ideal for engineers, shop-floor buyers, tradespeople, hobbyists, and non-technical users, it combines ground-profile precision with the ability to run at high machining parameters while maintaining high surface quality. The solid clamping method ensures full repeatability, and the same insert works for either right- or left-hand threads. Toolholders include a weldon shank and coolant bore, and chamfer inserts are available.
- Ground profile inserts for high precision: Delivers tight tolerances and clean thread profiles with consistent results, even at higher machining parameters, helping you achieve better thread quality and surface finish.
- Solid and accurate clamping for full repeatability: Ensures repeatable results across parts, reduces setup time, and minimizes downtime between jobs.
- RH/LH compatibility with coolant-ready toolholders: One insert handles both right- and left-hand threads; toolholders include weldon shank and coolant bore, with chamfer inserts available to expand your capabilities.
Designed to simplify threading operations and expand your machining options, this insert boosts workflow efficiency, delivers reliable performance across jobs, and helps you achieve consistent results from prototype through production.
| Application | Threading |
| Thread Form | Trapez |
| Internal or External | Internal |
| Insert Diameter | 17.8 |
| Pitch | 3 |
| Number of Flutes | 3 |
| Holder Code | H5.1 5.2 6 7 8 9 21 22 23 |
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 Vertical Milling CMT Single Flute Inserts - Trapez
View full collection →You are viewing C18I3TRMT7. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| C10I2TRMT7 | 10 | 2 | £33.36 | In Stock | |
| C12I2TRMT7 | 12 | 2 | £37.15 | 5 days | |
| C18I3TRMT7 Viewing | 17.8 | 3 | £41.92 | In Stock | |
| C18I4TRMT7 | 17.8 | 4 | £41.92 | 5 days | |
| C18I5TRMT7 | 17.8 | 5 | £41.92 | 5 days | |
| C25I6TRMT7 | 25 | 6 | £47.16 | 5 days |
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