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Carmex Thread Mills Solid Carbide - Internal Thread - UN (UNC UNF UNEF UNS) - 3/8 x 24 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 3/8 |
| Pitch | 24 |
| Diameter (D) | 7 |
| Flute Length (l) | 24 |
| Shank Diameter (d) | 8 |
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Engineered for precise internal threading, the Carmex MT7 Solid Carbide Internal Thread Mill delivers dependable 3/8-24 threads in UNC, UNF, UNEF and UNS standards. It’s built for efficiency and long tool life, making it ideal for shops and job sites that value consistent results.
- Solid carbide construction: Provides rigidity and wear resistance for demanding threading operations, helping extend tool life.
- Internal thread milling: Precisely forms internal threads (3/8-24) in holes, offering a tapping-free solution for both through-holes and blind holes.
- Thread form compatibility: Supports UNC, UNF, UNEF and UNS thread standards for broad versatility in a single tool.
- Size and pitch: 3/8" diameter with 24 TPI (3/8-24) for common internal-thread applications.
- Flute geometry: Multi-flute design with 3–5 flutes enhances cutting action, surface finish, and chip evacuation.
- MT7 shank: Morse Taper 7 shank ensures secure seating and compatibility with a wide range of milling machines and tool holders.
- MT line design: Part of Carmex’s MT thread milling family, optimized for efficient, cost-conscious threading with reliable results.
Whether used in prototypes, fixtures, or production parts, this internal thread mill delivers clean, accurate threads with repeatable results. Milling threads with this tool can reduce setup time and avoid tapping complications, while the carbide construction and multi-flute geometry promote long tool life and excellent chip control. Ideal for engineers and machinists needing a dependable, versatile solution for internal threading tasks.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 3/8 |
| Pitch | 24 |
| Diameter (D) | 7 |
| Flute Length (l) | 24 |
| Shank Diameter (d) | 8 |
| No of Flutes | 3 |
| Overall Length (L) | 64 |
| 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 MT0807C2124UNMT7. 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 | 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 Viewing | 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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