Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Thread Mills Solid Carbide - Fast Type - With Internal Coolant Bore - UN (UNC UNF UNEF UNS) - 7/16 x 20 - MT8
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 7/16 |
| Pitch | 20 |
| Diameter (D) | 9.2 |
| Flute Length (l) | 21 |
| Shank Diameter (d) | 12 |
Learn more about Klarna
The Carmex FMT/Fast MT solid carbide thread mill is engineered for high-speed, precise threading on challenging materials. Designed for shops that demand fast cycle times without compromising thread accuracy, this tool handles UNC, UNF, UNEF, and UNS forms in a compact 7/16 x 20 size with a robust MT8 shank.
- Tool family: FMT/Fast MT line engineered for high productivity and reliable threading performance.
- Thread compatibility: Supports UNC, UNF, UNEF, and UNS thread forms for versatile use across parts and assemblies.
- Thread size: 7/16 x 20, providing precise, consistent thread profiles in a range of materials.
- Shank type: MT8 shank for strong rigidity and compatibility with common milling machines.
- Flute count: Large flute count (5–8) designed to reduce cutting time and improve chip control.
- Material: Solid carbide for superior hardness, wear resistance, and extended tool life in tough alloys.
- Internal coolant bore: Built-in coolant channel enhances cooling, flushes chips, and maintains edge integrity during deep or aggressive cuts.
- Precision and build: Precision-ground geometry optimized for clean thread profiles and tight tolerances in production environments.
With multiple flutes, robust internal cooling, and a carbide core, this thread mill delivers faster threading cycles, superior surface finish on threaded features, and dependable performance in materials like hardened steels and stainless alloys. The 7/16 x 20 UN thread specification covers a wide range of insertions and assemblies, while the MT8 shank ensures solid rigidity and reduced tool deflection. Whether you're building automotive components, mold cores, or aerospace fittings, the Carmex FMT/Fast MT thread mill helps you complete threaded features quickly and consistently, with tools built to withstand demanding production schedules and frequent tool changes.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 7/16 |
| Pitch | 20 |
| Diameter (D) | 9.2 |
| Flute Length (l) | 21 |
| Shank Diameter (d) | 12 |
| No of Flutes | 8 |
| Overall Length (L) | 84 |
| Thread Mill Style | Fast + Chamfer + Coolant |
| Internal or External | Internal |
| Coating | MT8 |
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 Fast Solid Carbide Thread Mills - UN (UNC, UNF, UNEF) - With Internal Coolant Bore (FMT)
View full collection →You are viewing FMT12092H2120UNMT8. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| FMT08048E1220UNMT8 | 1/4 | 20 | 12.1 | 12.1 | 8 | 64 | £187.10 | 5 days | |
| FMT08052F1128UNMT8 | 1/4 | 28 | 11.3 | 11.3 | 8 | 64 | £187.10 | 5 days | |
| FMT10066G1424UNMT8 | 5/16 | 24 | 14.3 | 14.3 | 10 | 73 | £215.78 | 5 days | |
| FMT1006F1418UNMT8 | 5/16 | 18 | 14.8 | 14.8 | 10 | 73 | £215.78 | 5 days | |
| FMT10074F1616UNMT8 | 3/8 | 16 | 16.7 | 16.7 | 10 | 73 | £215.78 | 5 days | |
| FMT12082G1724UNMT8 | 3/8 9/16 5/8 11/16 | 24 | 17.5 | 17.5 | 12 | 84 | £269.98 | 5 days | |
| FMT12085F2014UNMT8 | 7/16 7/8 | 14 | 22 | 22 | 12 | 84 | £269.98 | 5 days | |
| FMT12092H2120UNMT8 Viewing | 7/16 | 20 | 21 | 21 | 12 | 84 | £269.98 | 5 days | |
| FMT12098F2413UNMT8 | 1/2 | 13 | 24.4 | 24.4 | 12 | 84 | £269.98 | 5 days | |
| FMT12098H1928UNMT8 | 7/16 - 1/2 | 28 | 20.5 | 20.5 | 12 | 84 | £269.98 | 5 days | |
| FMT14111H2220UNMT8 | 1/2 3/4 7/8 1 | 20 | 22.2 | 22.2 | 14 | 84 | £300.30 | 5 days | |
| FMT16116F2612UNMT8 | 9/16 1 | 12 | 26.5 | 26.5 | 16 | 105 | £318.52 | 5 days | |
| FMT16125H2618UNMT8 | 9/16 5/8 1 1/16 1 1/8 | 18 | 26.1 | 26.1 | 16 | 105 | £318.52 | 5 days | |
| FMT1612F3311UNMT8 | 5/8 | 11 | 33.4 | 33.4 | 16 | 105 | £318.52 | 5 days | |
| FMT20167H3416UNMT8 | 3/4 | 16 | 34.1 | 34.1 | 20 | 105 | £349.70 | 5 days |
No products match your filters.





