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

Carmex Thread Mills Solid Carbide - With Through Coolant - Metric - M20 x 2.5 - MT7
| Thread Form | Metric |
| Size | M20 |
| Pitch | 2.5 |
| Diameter (D) | 15 |
| Flute Length (l) | 48.8 |
| Shank Diameter (d) | 16 |
Learn more about Klarna
Engineered for high-precision internal threading, Carmex's Solid Carbide Thread Mills with Through-Coolant deliver reliable, consistent threads in metric M20 x 2.5 holes. Designed for MT7 tooling systems, this tool combines carbide durability with efficient chip management for demanding machining environments.
- Through-Coolant Bore: coolant is delivered through the bore to the cutting zone, promoting effective chip evacuation and cooler operation for deeper holes and tougher materials.
- Solid Carbide Construction: premium carbide offers exceptional hardness and wear resistance, supporting precise thread profiles and longer tool life.
- Metric Thread Size: specifically engineered for M20 x 2.5 internal threads, enabling accurate, repeatable thread geometry in metal parts.
- MT7 Shank: compatible with standard MT7M/MT7 CNC holders, ensuring broad integration with common milling centers and setups.
- Optimized Cutting Geometry: designed for stable thread milling performance, delivering clean thread starts, consistent pitch, and reduced burr formation.
This through-coolant thread mill is ideal for production runs and precision shops aiming to improve uptime, reduce rework, and achieve high-quality internal threads in metals ranging from alloys to tougher steels. By combining chip control with durable carbide, it helps you achieve reliable thread integrity, smoother finishes, and longer tool life in challenging drilling and milling applications.
| Thread Form | Metric |
| Size | M20 |
| Pitch | 2.5 |
| Diameter (D) | 15 |
| Flute Length (l) | 48.8 |
| Shank Diameter (d) | 16 |
| No of Flutes | 5 |
| Overall Length (L) | 105 |
| Thread Mill Style | Standard + Coolant |
| 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 - ISO Metric - With Through Coolant (MTB)
View full collection →You are viewing MTB1615E482.5ISOMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTB06031C70.7ISOMT7 | M4 | 0.7 | 7.4 | 7.4 | 58 | £71.61 | 5 days | |
| MTB06038C100.5ISOMT7 | M5 | 0.5 | 10.3 | 10.3 | 58 | £71.61 | 5 days | |
| MTB06038C90.8ISOMT7 | M5 | 0.8 | 9.2 | 9.2 | 58 | £71.61 | 5 days | |
| MTB06045C100.75ISOMT7 | M6 M8 | 0.75 | 10.1 | 10.1 | 58 | £71.61 | 5 days | |
| MTB06046C101.0ISOMT7 | M6 | 1 | 10.5 | 10.5 | 58 | £71.61 | 5 days | |
| MTB06046C141.0ISOMT7 | M6 | 1 | 14.5 | 14.5 | 58 | £85.94 | 5 days | |
| MTB0604C130.8ISOMT7 | M5 | 0.8 | 13.2 | 13.2 | 58 | £85.94 | 5 days | |
| MTB0606C121.0ISOMT7 | M8 | 1 | 12.5 | 12.5 | 58 | £71.61 | 5 days | |
| MTB0606C141.25ISOMT7 | M8 M10 | 1.25 | 14.4 | 14.4 | 58 | £71.61 | 5 days | |
| MTB0606C191.25ISOMT7 | M8 M10 | 1.25 | 19.4 | 19.4 | 58 | £85.94 | 5 days | |
| MTB08078C171.5ISOMT7 | M10 M12 | 1.5 | 17 | 17 | 64 | £95.39 | 5 days | |
| MTB08078C241.5ISOMT7 | M10 M12 | 1.5 | 24.8 | 24.8 | 76 | £114.46 | 5 days | |
| MTB0808D161.0ISOMT7 | M10 | 1 | 16.5 | 16.5 | 64 | £95.39 | 5 days | |
| MTB1009C201.75ISOMT7 | M12 | 1.75 | 20.1 | 20.1 | 73 | £110.03 | 5 days | |
| MTB1009C281.75ISOMT7 | M12 | 1.75 | 28.9 | 28.9 | 73 | £132.07 | 5 days | |
| MTB1010C272.0ISOMT7 | M14 M17 | 2 | 27 | 27 | 73 | £110.03 | 5 days | |
| MTB1010D211.5ISOMT7 | M14 | 1.5 | 21.8 | 21.8 | 73 | £110.03 | 5 days | |
| MTB1010D240.75ISOMT7 | M12 M14 | 0.75 | 24.4 | 24.4 | 73 | £110.03 | 5 days | |
| MTB1010D241.0ISOMT7 | M12 | 1 | 24.5 | 24.5 | 73 | £110.03 | 5 days | |
| MTB12118D272.0ISOMT7 | M16 M18 M20 | 2 | 27 | 27 | 84 | £137.69 | 5 days | |
| MTB12118D392.0ISOMT7 | M16 M18 M20 | 2 | 39 | 39 | 105 | £165.20 | 5 days | |
| MTB1211D392.0ISOMT7 | M14 M17 | 2 | 39 | 39 | 105 | £165.20 | 5 days | |
| MTB1212D261.5ISOMT7 | M14 - M18 | 1.5 | 26.3 | 26.3 | 84 | £137.69 | 5 days | |
| MTB1615E332.5ISOMT7 | M20 | 2.5 | 33.8 | 33.8 | 105 | £162.44 | 5 days | |
| MTB1615E482.5ISOMT7 Viewing | M20 | 2.5 | 48.8 | 48.8 | 105 | £194.91 | 5 days | |
| MTB1616F331.5ISOMT7 | M20 | 1.5 | 33.8 | 33.8 | 105 | £162.44 | 5 days | |
| MTB2018D403.0ISOMT7 | M24 M28 | 3 | 40.5 | 40.5 | 105 | £196.18 | 5 days | |
| MTB2018D583.0ISOMT7 | M24 M28 | 3 | 58.5 | 58.5 | 120 | £235.43 | 5 days | |
| MTB2020D433.0ISOMT7 | M27 M28 M30 | 3 | 43.5 | 43.5 | 105 | £196.18 | 5 days | |
| MTB2020F412.0ISOMT7 | M26 | 2 | 41 | 41 | 105 | £196.18 | 5 days |
No products match your filters.






