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Carmex Thread Mills Solid Carbide - With Through Coolant - Metric - M16, M18, M20 x 2 - MT7
| Thread Form | Metric |
| Size | M16 M18 M20 |
| Pitch | 2 |
| Diameter (D) | 11 |
| Flute Length (l) | 39 |
| Shank Diameter (d) | 12 |
Learn more about Klarna
Carmex MTB solid carbide thread mills with through coolant are engineered for precise ISO metric internal threading in M16, M18, and M20 sizes. Built on the trusted MT platform, these tools deliver reliable thread quality, improved chip evacuation, and longer tool life in demanding production environments.
- Through-Coolant Bore: Coolant flows directly through the tool’s bore to the cutting edges, flushing chips and reducing heat buildup for deeper, consistent threads.
- Solid Carbide MT7 Grade: Sub-micron MT7 carbide with a multi-layer TiAIN coating provides high hardness, wear resistance, and extended tool life.
- Metric ISO Threading: Optimized geometry for metric threads M16, M18, and M20, delivering accurate pitches and clean thread profiles.
- Rugged MTB Design: Enhanced rigidity and durable construction built on Carmex MT technology to handle demanding machining conditions.
- Internal Coolant Delivery: Coolant is delivered through the flute bore for efficient cooling and effective chip removal during heavy material removal.
The combination of coolant-through capability and MT7 carbide delivers lower cutting temperatures, reduced tool wear, and more consistent thread quality—translating to fewer tool changes and shorter cycle times. Ideal for manufacturers tackling precision threaded components in automotive, aerospace, and industrial tooling, where reliable, repeatable threads matter most.
| Thread Form | Metric |
| Size | M16 M18 M20 |
| Pitch | 2 |
| Diameter (D) | 11 |
| Flute Length (l) | 39 |
| Shank Diameter (d) | 12 |
| No of Flutes | 4 |
| 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 MTB12118D392.0ISOMT7. 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 | £95.48 | 5 days | |
| MTB06038C100.5ISOMT7 | M5 | 0.5 | 10.3 | 10.3 | 58 | £95.48 | 5 days | |
| MTB06038C90.8ISOMT7 | M5 | 0.8 | 9.2 | 9.2 | 58 | £95.48 | 5 days | |
| MTB06045C100.75ISOMT7 | M6 M8 | 0.75 | 10.1 | 10.1 | 58 | £95.48 | 5 days | |
| MTB06046C101.0ISOMT7 | M6 | 1 | 10.5 | 10.5 | 58 | £95.48 | 5 days | |
| MTB06046C141.0ISOMT7 | M6 | 1 | 14.5 | 14.5 | 58 | £114.58 | 5 days | |
| MTB0604C130.8ISOMT7 | M5 | 0.8 | 13.2 | 13.2 | 58 | £114.58 | 5 days | |
| MTB0606C121.0ISOMT7 | M8 | 1 | 12.5 | 12.5 | 58 | £95.48 | 5 days | |
| MTB0606C141.25ISOMT7 | M8 M10 | 1.25 | 14.4 | 14.4 | 58 | £95.48 | 5 days | |
| MTB0606C191.25ISOMT7 | M8 M10 | 1.25 | 19.4 | 19.4 | 58 | £114.58 | 5 days | |
| MTB08078C171.5ISOMT7 | M10 M12 | 1.5 | 17 | 17 | 64 | £127.18 | 5 days | |
| MTB08078C241.5ISOMT7 | M10 M12 | 1.5 | 24.8 | 24.8 | 76 | £152.61 | 5 days | |
| MTB0808D161.0ISOMT7 | M10 | 1 | 16.5 | 16.5 | 64 | £127.18 | 5 days | |
| MTB1009C201.75ISOMT7 | M12 | 1.75 | 20.1 | 20.1 | 73 | £146.70 | 5 days | |
| MTB1009C281.75ISOMT7 | M12 | 1.75 | 28.9 | 28.9 | 73 | £176.09 | 5 days | |
| MTB1010C272.0ISOMT7 | M14 M17 | 2 | 27 | 27 | 73 | £146.70 | 5 days | |
| MTB1010D211.5ISOMT7 | M14 | 1.5 | 21.8 | 21.8 | 73 | £146.70 | 5 days | |
| MTB1010D240.75ISOMT7 | M12 M14 | 0.75 | 24.4 | 24.4 | 73 | £146.70 | 5 days | |
| MTB1010D241.0ISOMT7 | M12 | 1 | 24.5 | 24.5 | 73 | £146.70 | 5 days | |
| MTB12118D272.0ISOMT7 | M16 M18 M20 | 2 | 27 | 27 | 84 | £183.59 | 5 days | |
| MTB12118D392.0ISOMT7 Viewing | M16 M18 M20 | 2 | 39 | 39 | 105 | £220.26 | 5 days | |
| MTB1211D392.0ISOMT7 | M14 M17 | 2 | 39 | 39 | 105 | £220.26 | 5 days | |
| MTB1212D261.5ISOMT7 | M14 - M18 | 1.5 | 26.3 | 26.3 | 84 | £183.59 | 5 days | |
| MTB1615E332.5ISOMT7 | M20 | 2.5 | 33.8 | 33.8 | 105 | £216.59 | 5 days | |
| MTB1615E482.5ISOMT7 | M20 | 2.5 | 48.8 | 48.8 | 105 | £259.88 | 5 days | |
| MTB1616F331.5ISOMT7 | M20 | 1.5 | 33.8 | 33.8 | 105 | £216.59 | 5 days | |
| MTB2018D403.0ISOMT7 | M24 M28 | 3 | 40.5 | 40.5 | 105 | £261.57 | In Stock | |
| MTB2018D583.0ISOMT7 | M24 M28 | 3 | 58.5 | 58.5 | 120 | £313.91 | 5 days | |
| MTB2020D433.0ISOMT7 | M27 M28 M30 | 3 | 43.5 | 43.5 | 105 | £261.57 | 5 days | |
| MTB2020F412.0ISOMT7 | M26 | 2 | 41 | 41 | 105 | £261.57 | 5 days |
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