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Carmex Thread Mills Solid Carbide - Internal Thread - UN (UNC UNF UNEF UNS) - 5/16 x 18 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 |
| Pitch | 18 |
| Diameter (D) | 5 |
| Flute Length (l) | 14.8 |
| Shank Diameter (d) | 6 |
Learn more about Klarna
The Carmex MT solid carbide internal thread mill is built for precise UN-family threading in a compact, cost‑efficient package. It’s designed for shops that need reliable internal threads (UNC, UNF, UNEF, UNS) at 5/16-18 with a versatile MT7 shank.
- Material: Solid carbide for outstanding rigidity, wear resistance, and long tool life in demanding machining environments.
- Internal threading: Specifically engineered to mill internal threads in UNC/UNF/UNEF/UNS forms with a 5/16-18 size.
- Thread size: Targeted internal thread dimension of 5/16 inch diameter at 18 TPI for consistent fitment.
- Flute configuration: Multi‑flute geometry (3–5 flutes) optimized for stable cutting, smoother thread formation, and effective chip evacuation.
- Shank type: MT7 shank, ensuring broad compatibility with standard MT7 collets and holders.
- Value proposition: Designed to deliver efficient threading with cost‑effective tooling life, ideal for high‑volume production as well as onsite repairs.
The MT thread mill brings dependable, repeatable internal threads to production runs, prototype work, and repair tasks. Its carbide rigidity and multi‑flute design help achieve clean thread profiles with fewer passes, reducing cycle times and tooling costs. With its MT7 interface, it integrates smoothly into existing equipment while delivering consistent results across UNC, UNF, UNEF, and UNS thread forms. Whether you’re building assemblies, repairing threaded holes, or setting up a repeatable production process, this tool offers a reliable, precise solution for internal threading.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 |
| Pitch | 18 |
| Diameter (D) | 5 |
| Flute Length (l) | 14.8 |
| Shank Diameter (d) | 6 |
| No of Flutes | 3 |
| Overall Length (L) | 58 |
| Thread Mill Style | Standard |
| 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 (UNC UNF UNEF) - For Internal Thread (MT)
View full collection →You are viewing MT0605C1418UNMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MT06025C640UNMT7 | No.5 | 40 | 6 | 6 | 58 | £86.80 | 5 days | |
| MT06032C632UNMT7 | No. 8 No. 10 No. 12 | 32 | 6.8 | 6.8 | 58 | £86.80 | In Stock | |
| MT06045C1220UNMT7 | 1/4 | 20 | 12.1 | 12.1 | 58 | £86.80 | 5 days | |
| MT0604C1128UNMT7 | 1/4 | 28 | 11.3 | 11.3 | 58 | £86.80 | 5 days | |
| MT06052C1528UNMT7 | 1/4 | 28 | 15 | 15 | 58 | £86.80 | In Stock | |
| MT0605C1418UNMT7 Viewing | 5/16 | 18 | 14.8 | 14.8 | 58 | £86.80 | 5 days | |
| MT0605C1424UNMT7 | 5/16 | 24 | 14.3 | 14.3 | 58 | £86.80 | 5 days | |
| MT0606C1428UNMT7 | 7/16 1/2 | 28 | 14.1 | 14.1 | 58 | £86.80 | 5 days | |
| MT0606C1616UNMT7 | 3/8 | 16 | 16.7 | 16.7 | 58 | £86.80 | 5 days | |
| MT0606C2018UNMT7 | 5/16 | 18 | 20.5 | 20.5 | 58 | £104.16 | 5 days | |
| MT08074C2416UNMT7 | 3/8 | 16 | 24.6 | 24.6 | 64 | £115.62 | In Stock | |
| MT0807C2014UNMT7 | 7/16 | 14 | 20.9 | 20.9 | 64 | £115.62 | 5 days | |
| MT0807C2120UNMT7 | 7/16 1/2 | 20 | 21 | 21 | 64 | £115.62 | In Stock | |
| MT0807C2124UNMT7 | 3/8 | 24 | 24 | 24 | 64 | £115.62 | In Stock | |
| MT0808C2213UNMT7 | 1/2 | 13 | 22.5 | 22.5 | 64 | £115.62 | 5 days | |
| MT10085C2814UNMT7 | 7/16 | 14 | 28.1 | 28.1 | 73 | £133.36 | 5 days | |
| MT10098D3213UNMT7 | 1/2 | 13 | 32.2 | 32.2 | 73 | £133.36 | In Stock | |
| MT1010C2612UNMT7 | 9/16 | 12 | 26.5 | 26.5 | 73 | £133.36 | 5 days | |
| MT1010C2811UNMT7 | 5/8 | 11 | 28.9 | 28.9 | 73 | £133.36 | 5 days | |
| MT1010D2618UNMT7 | 9/16 5/8 - 1 1/8 1 5/8 | 18 | 26.1 | 26.1 | 73 | £133.36 | In Stock | |
| MT12116D3712UNMT7 | 9/16 | 12 | 37 | 37 | 84 | £166.90 | 5 days | |
| MT1212C3410UNMT7 | 3/4 | 10 | 34.3 | 34.3 | 84 | £166.90 | 5 days | |
| MT1212D3116UNMT7 | 3/4 | 16 | 31 | 31 | 84 | £166.90 | In Stock | |
| MT1212D3811UNMT7 | 5/8 | 11 | 38.1 | 38.1 | 84 | £166.90 | 5 days | |
| MT1212E2720UNMT7 | 3/4 - 1 | 20 | 27.3 | 27.3 | 84 | £166.90 | In Stock | |
| MT16147E4910UNMT7 | 3/4 | 10 | 49.5 | 49.5 | 105 | £196.90 | 5 days | |
| MT1615C389UNMT7 | 7/8 | 9 | 38.1 | 38.1 | 105 | £196.90 | In Stock | |
| MT1615E3714UNMT7 | 7/8 | 14 | 37.2 | 37.2 | 105 | £196.90 | 5 days | |
| MT1616C428UNMT7 | 1 | 8 | 42.9 | 42.9 | 105 | £196.90 | 5 days | |
| MT1616E4112UNMT7 | 1 - 1 1/2 | 12 | 41.3 | 41.3 | 105 | £196.90 | 5 days | |
| MT2020D457UNMT7 | 1 1/8 - 1 1/4 | 7 | 45.3 | 45.3 | 105 | £237.79 | 5 days |
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