Please log in here to access all benefits, including promotional discounts and faster checkouts.
Carmex Thread Mills Carbide - Through Coolant (Flutes) - UN (UNC UNF UNEF UNS) - 3/4 - 1 x 20 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 3/4 - 1 |
| Pitch | 20 |
| Diameter (D) | 12 |
| Flute Length (l) | 27.3 |
| Shank Diameter (d) | 12 |
Learn more about Klarna
Carmex MTZ threaded milling solution combines carbide durability with through-coolant delivery, engineered for precise internal threading in through-hole applications and machines without external coolant.
- Through-coolant flute design: coolant is delivered directly to the cutting edge via the flutes, enhancing heat management and finishing quality during thread milling.
- Carbide construction: robust, wear-resistant carbide body for extended tool life when threading through tough materials.
- MT7 shank: compatible with a wide range of CNC milling centers and tooling setups for versatile integration.
- Thread format: UNC thread compatibility (UN/UNC UNF UNEF UNS) with a precise 1 x 20 pitch on a 3/4" diameter.
- Through-hole threading optimization: optimized flute geometry supports direct chip evacuation, reducing clogging and improving stability on through-hole projects.
- Machine compatibility: effective threading performance even on machines lacking external coolant systems, thanks to internal through-coolant delivery.
- Industrial applications: ideal for precision internal threads in components such as housings, manifolds, engine blocks, and molds where clean, accurate threads are critical.
This thread mill delivers a reliable combination of precision, durability, and coolant efficiency. By routing coolant through the tool, it helps maintain consistent cutting conditions, produce smooth thread finishes, and extend tool life—all essential for high-mix, high-demand production environments.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 3/4 - 1 |
| Pitch | 20 |
| Diameter (D) | 12 |
| Flute Length (l) | 27.3 |
| Shank Diameter (d) | 12 |
| No of Flutes | 5 |
| Overall Length (L) | 84 |
| Thread Mill Style | Standard + Coolant (Flutes) |
| Internal or External | Internal |
| Coating | MT7 |
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 Solid Carbide Thread Mills - UN - With Internal Coolant Through The Flutes (MTZ)
View full collection →You are viewing MTZ1212E2720UNMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTZ06056C1418UNMT7 | 5/16 | 18 | 14.8 | 14.8 | 58 | £139.46 | 5 days | |
| MTZ0605C1128UNMT7 | 1/4 | 28 | 11.3 | 11.3 | 58 | £139.46 | 5 days | |
| MTZ0606C1428UNMT7 | 7/16 - 1/2 | 28 | 14.1 | 14.1 | 58 | £139.46 | 5 days | |
| MTZ0606C2018UNMT7 | 5/16 | 18 | 20.5 | 20.5 | 58 | £167.29 | 5 days | |
| MTZ08066C1424UNMT7 | 5/16 | 24 | 14.3 | 14.3 | 64 | £181.61 | 5 days | |
| MTZ08067C1616UNMT7 | 3/8 | 16 | 16.7 | 16.7 | 64 | £181.61 | 5 days | |
| MTZ08074C2416UNMT7 | 3/8 | 16 | 24.6 | 24.6 | 64 | £217.91 | 5 days | |
| MTZ08077C2014UNMT7 | 7/16 | 14 | 20.9 | 20.9 | 64 | £181.61 | 5 days | |
| MTZ0808C2120UNMT7 | 7/16 | 10 | 21 | 21 | 64 | £181.61 | 5 days | |
| MTZ0808D2124UNMT7 | 3/8 9/16 - 5/8 | 24 | 20.6 | 20.6 | 64 | £181.61 | 5 days | |
| MTZ10085C2814UNMT7 | 7/16 | 14 | 28.1 | 28.1 | 73 | £231.33 | 5 days | |
| MTZ10092C2213UNMT7 | 1/2 | 13 | 22.5 | 22.5 | 73 | £210.25 | 5 days | |
| MTZ10098D3213UNMT7 | 1/2 | 13 | 32.2 | 32.2 | 73 | £252.34 | 5 days | |
| MTZ1010D2220UNMT7 | 1/2 | 20 | 22.3 | 22.3 | 73 | £210.25 | 5 days | |
| MTZ12105C2612UNMT7 | 9/16 | 12 | 26.5 | 26.5 | 84 | £260.92 | 5 days | |
| MTZ12113D2618UNMT7 | 9/16 5/8 - 1 1/8 1 5/8 | 18 | 26.1 | 26.1 | 84 | £260.92 | 5 days | |
| MTZ12114C2811UNMT7 | 5/8 | 11 | 28.9 | 28.9 | 84 | £260.92 | In Stock | |
| MTZ12116D3712UNMT7 | 9/16 | 12 | 37 | 37 | 84 | £313.08 | 5 days | |
| MTZ1212D3116UNMT7 | 3/4 | 16 | 31 | 31 | 84 | £260.92 | 5 days | |
| MTZ1212E2720UNMT7 Viewing | 3/4 - 1 | 20 | 27.3 | 27.3 | 84 | £260.92 | 5 days | |
| MTZ16144D3410UNMT7 | 3/4 | 10 | 34.3 | 34.3 | 105 | £315.44 | 5 days | |
| MTZ1616E3714UNMT7 | 7/8 | 14 | 37.2 | 37.2 | 101 | £315.44 | 5 days | |
| MTZ1616E4112UNMT7 | 1 - 1 1/2 | 12 | 41.3 | 41.3 | 101 | £315.44 | 5 days |
No products match your filters.
