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Carmex Thread Mills Carbide - Single Point - Trapez - TR12 x 3 - MT11
| Thread Form | Trapez |
| Size | TR12 |
| Pitch | 3 |
| Diameter (D) | 7 |
| Flute Length (l) | 3 |
| Shank Diameter (d) | 8 |
Learn more about Klarna
Carmex Thread Mills Carbide are full-profile, single-point internal-thread mills designed for precise micro-threading in CNC setups. Built for machinists and shop floors that demand reliable threading from tiny sizes up to standard targets, they deliver clean, accurate internal threads with a durable carbide core.
- Tool type: Full-profile internal-thread mill with a single-point, trapez profile for versatile internal threading in a range of materials.
- Shank size: TR12 (12 mm) shank for compatibility with common tool holders and compact setups.
- Cutting geometry: Trapez/Single-Point profile optimized for stable, precise inside-thread milling.
- Flutes: Multi-flute design (3–4 flutes) to balance strength, chip evacuation, and surface finish.
- Material and grade: Carbide substrate paired with MT11 ultra-fine sub-micron grade for exceptional edge health and precision.
- Coating: Triple blue PVD coating to enhance wear resistance and extend tool life in demanding materials.
- Thread range: Supports internal threads from ISO M1 x 0.25 up to 0-80 UNF, enabling small-diameter and fine-pitch applications.
- Depth capability: Thread depth up to 3.5 times the thread diameter (depth varies with profile and hole geometry).
This tool is ideal for machinists assembling miniature components, precision medical devices, electronics housings, and any application requiring clean, repeatable internal threads without tapping. The combination of carbide hardness, a refined MT11 grade, and a tough PVD coating delivers consistent performance, reduced tool wear, and reliable thread quality across production runs. Whether you’re threading through-holes or blind holes, this Carmex mill offers predictable results with minimal finishing work.
| Thread Form | Trapez |
| Size | TR12 |
| Pitch | 3 |
| Diameter (D) | 7 |
| Flute Length (l) | 3 |
| Shank Diameter (d) | 8 |
| No of Flutes | 3 |
| Overall Length (L) | 64 |
| Thread Mill Style | Single Point |
| Internal or External | Internal |
| Coating | MT11 |
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 Carbide Thread Mills - Trapez Mini Type For Internal Thread (MTI)
View full collection →You are viewing MTI0807C253TRMT8. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MTI06055C131.5TRMT8 | TR8 TR9 | 1.5 | 1.5 | 13.5 | 6 | 58 | £95.44 | 5 days | |
| MTI08066C212TRMT8 | TR10 TR11 | 2 | 2 | 21 | 8 | 64 | £127.22 | In Stock | |
| MTI0807C253TRMT8 Viewing | TR12 | 3 | 3 | 25 | 8 | 64 | £127.22 | In Stock | |
| MTI10086D252TRMT8 | TR12 TR14 | 2 | 2 | 25 | 10 | 73 | £164.62 | 5 days | |
| MTI10089D293TRMT8 | TR14 TR22 | 3 | 3 | 29 | 10 | 73 | £164.62 | 5 days | |
| MTI10092C334TRMT8 | TR16 TR18 TR20 | 4 | 4 | 33 | 10 | 73 | £164.62 | 5 days | |
| MTI14135D455TRMT8 | TR22 TR24 TR26 | 5 | 5 | 45 | 14 | 105 | £244.72 | 5 days |
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