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Carmex Thread Mills Carbide - Through Coolant (Flutes) - UN (UNC UNF UNEF UNS) - 1/2 x 20 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 1/2 |
| Pitch | 20 |
| Diameter (D) | 10 |
| Flute Length (l) | 22.3 |
| Shank Diameter (d) | 10 |
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Designed for precision threading in through-hole applications, Carmex MTZ carbide thread mills deliver coolant directly through the flutes to the cutting edge. This 1/2" diameter, 20 TPI tool is ideal for standard inch thread forms (UNC, UNF, UNEF, UNS) and helps achieve smooth, reliable threads with every pass.
- Through-flute coolant delivery: Coolant is directed through the flutes to the cutting edge for improved heat control and chip evacuation, enabling stable threading.
- Threading focus for through holes: Optimized for threading through holes with direct chip removal, boosting efficiency and surface finish.
- Size and thread compatibility: 1/2" diameter with 20 TPI, supporting UNC, UNF, UNEF and UNS thread standards.
- Carbide grade: MT7 solid carbide delivers excellent wear resistance and toughness for demanding machining environments.
- MTZ family design: Part of Carmex’s MTZ range, specifically engineered to maximize internal cooling through the flutes.
- Machine compatibility: Designed to perform on machines without external coolant systems, expanding where you can thread mill with confidence.
This combination of through-coolant delivery, through-hole threading optimization, and durable MT7 carbide makes the Carmex MTZ 1/2 x 20 MT7 thread mill a practical choice for automotive, aerospace, and general manufacturing gear where precise, high-quality threads are essential. The tool’s internal coolant through the flutes helps maintain consistent thread quality, reduces heat-related distortion, and supports longer tool life in repetitive production scenarios.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 1/2 |
| Pitch | 20 |
| Diameter (D) | 10 |
| Flute Length (l) | 22.3 |
| Shank Diameter (d) | 10 |
| No of Flutes | 4 |
| Overall Length (L) | 73 |
| Thread Mill Style | Standard + Coolant (Flutes) |
| 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 - With Internal Coolant Through The Flutes (MTZ)
View full collection →You are viewing MTZ1010D2220UNMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTZ06056C1418UNMT7 | 5/16 | 18 | 14.8 | 14.8 | 58 | £104.60 | 5 days | |
| MTZ0605C1128UNMT7 | 1/4 | 28 | 11.3 | 11.3 | 58 | £104.60 | 5 days | |
| MTZ0606C1428UNMT7 | 7/16 - 1/2 | 28 | 14.1 | 14.1 | 58 | £104.60 | 5 days | |
| MTZ0606C2018UNMT7 | 5/16 | 18 | 20.5 | 20.5 | 58 | £125.47 | In Stock | |
| MTZ08066C1424UNMT7 | 5/16 | 24 | 14.3 | 14.3 | 64 | £136.21 | 5 days | |
| MTZ08067C1616UNMT7 | 3/8 | 16 | 16.7 | 16.7 | 64 | £136.21 | 5 days | |
| MTZ08074C2416UNMT7 | 3/8 | 16 | 24.6 | 24.6 | 64 | £163.43 | 5 days | |
| MTZ08077C2014UNMT7 | 7/16 | 14 | 20.9 | 20.9 | 64 | £136.21 | 5 days | |
| MTZ0808C2120UNMT7 | 7/16 | 10 | 21 | 21 | 64 | £136.21 | 5 days | |
| MTZ0808D2124UNMT7 | 3/8 9/16 - 5/8 | 24 | 20.6 | 20.6 | 64 | £136.21 | 5 days | |
| MTZ10085C2814UNMT7 | 7/16 | 14 | 28.1 | 28.1 | 73 | £173.50 | 5 days | |
| MTZ10092C2213UNMT7 | 1/2 | 13 | 22.5 | 22.5 | 73 | £157.69 | 5 days | |
| MTZ10098D3213UNMT7 | 1/2 | 13 | 32.2 | 32.2 | 73 | £189.26 | 5 days | |
| MTZ1010D2220UNMT7 Viewing | 1/2 | 20 | 22.3 | 22.3 | 73 | £157.69 | 5 days | |
| MTZ12105C2612UNMT7 | 9/16 | 12 | 26.5 | 26.5 | 84 | £195.69 | 5 days | |
| MTZ12113D2618UNMT7 | 9/16 5/8 - 1 1/8 1 5/8 | 18 | 26.1 | 26.1 | 84 | £195.69 | 5 days | |
| MTZ12114C2811UNMT7 | 5/8 | 11 | 28.9 | 28.9 | 84 | £195.69 | In Stock | |
| MTZ12116D3712UNMT7 | 9/16 | 12 | 37 | 37 | 84 | £234.81 | 5 days | |
| MTZ1212D3116UNMT7 | 3/4 | 16 | 31 | 31 | 84 | £195.69 | 5 days | |
| MTZ1212E2720UNMT7 | 3/4 - 1 | 20 | 27.3 | 27.3 | 84 | £195.69 | 5 days | |
| MTZ16144D3410UNMT7 | 3/4 | 10 | 34.3 | 34.3 | 105 | £236.58 | 5 days | |
| MTZ1616E3714UNMT7 | 7/8 | 14 | 37.2 | 37.2 | 101 | £236.58 | 5 days | |
| MTZ1616E4112UNMT7 | 1 - 1 1/2 | 12 | 41.3 | 41.3 | 101 | £236.58 | 5 days |
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