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Carmex Thread Mills Solid Carbide - With Through Coolant - UN (UNC UNF UNEF UNS) - 5/16 x 18 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 |
| Pitch | 18 |
| Diameter (D) | 5.6 |
| Flute Length (l) | 14.8 |
| Shank Diameter (d) | 6 |
Learn more about Klarna
Introducing Carmex MTB Thread Mills — a high-precision, solid carbide internal threading tool built for through-coolant machining. Designed for 5/16-18 UN-family threads (UNC, UNF, UNEF, UNS) with an MT7 shank, these cutters deliver clean, accurate threads in demanding metals while maintaining long tool life.
- Through-Coolant Bore: coolant is delivered through the tool bore to flood the cutting zone, improving chip evacuation and reducing heat buildup for steadier threading.
- Solid Carbide Construction: rigid, wear-resistant cutting edges provide consistent thread profiles and extended tool life across a range of materials, including steel and aluminum.
- UN Thread Compatibility: specifically engineered for 5/16-18 internal threads, supporting UNC, UNF, UNEF, and UNS forms for versatile, precise threading.
- MT7 Shank: robust MT7 interface ensures secure, accurate engagement with compatible milling machines and tooling setups.
- Optimized Flute Geometry: designed to promote efficient chip formation and smooth engagement in through-coolant operations, reducing friction and chatter.
- Reliable Thread Finish: tight tolerances and stable cutting dynamics yield consistent thread finishes and dependable mating with fasteners.
These features translate into practical benefits on the shop floor: faster cycle times through effective chip evacuation, reduced tool wear and fewer tool changes, and higher-quality internal threads that meet demanding assembly requirements. The Carmex MTB Thread Mills are an excellent choice for precision manufacturing environments where through-coolant threading, long tool life, and consistent UNC/UNF/UNEF/UNS performance matter most.
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 |
| Pitch | 18 |
| Diameter (D) | 5.6 |
| Flute Length (l) | 14.8 |
| Shank Diameter (d) | 6 |
| No of Flutes | 3 |
| Overall Length (L) | 58 |
| 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 - UN (UNC, UNF, UNEF) - With Through Coolant (MTB)
View full collection →You are viewing MTB06056C1418UNMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTB06032C632UNMT7 | No. 8 No. 10 No. 12 | 32 | 6.8 | 6.8 | 58 | £71.61 | 5 days | |
| MTB06047C1220UNMT7 | 1/4 | 20 | 12.1 | 12.1 | 58 | £71.61 | 5 days | |
| MTB06052C1528UNMT7 | 1/4 | 28 | 15 | 15 | 58 | £85.94 | 5 days | |
| MTB06056C1418UNMT7 Viewing | 5/16 | 18 | 14.8 | 14.8 | 58 | £71.61 | 5 days | |
| MTB0605C1128UNMT7 | 1/4 | 28 | 11.3 | 11.3 | 58 | £71.61 | 5 days | |
| MTB0606C1428UNMT7 | 7/16 - 1/2 | 28 | 14.1 | 14.1 | 58 | £71.61 | 5 days | |
| MTB0606C1432UNMT7 | 5/16 | 32 | 14.7 | 14.7 | 58 | £71.61 | In Stock | |
| MTB0606C2018UNMT7 | 5/16 | 18 | 20.5 | 20.5 | 58 | £85.94 | 5 days | |
| MTB08066C1424UNMT7 | 5/16 | 24 | 14.3 | 14.3 | 64 | £95.39 | 5 days | |
| MTB08067C1616UNMT7 | 3/8 | 16 | 16.7 | 16.7 | 64 | £95.39 | 5 days | |
| MTB08074C2416UNMT7 | 3/8 | 16 | 24.6 | 24.6 | 64 | £114.46 | 5 days | |
| MTB08077C2014UNMT7 | 7/16 | 14 | 20.9 | 20.9 | 64 | £95.39 | 5 days | |
| MTB0808C2120UNMT7 | 7/16 - 1/2 | 20 | 21 | 21 | 64 | £95.39 | 5 days | |
| MTB0808D1832UNMT7 | 3/8 | 32 | 18.7 | 18.7 | 64 | £95.39 | 5 days | |
| MTB0808D2124UNMT7 | 3/8 9/16 - 5/8 | 24 | 20.6 | 20.6 | 64 | £95.39 | 5 days | |
| MTB10085C2814UNMT7 | 7/16 | 14 | 28.1 | 28.1 | 73 | £132.07 | 5 days | |
| MTB10092C2213UNMT7 | 1/2 | 13 | 22.5 | 22.5 | 73 | £110.03 | 5 days | |
| MTB10098D3213UNMT7 | 1/2 | 13 | 32.2 | 32.2 | 73 | £132.07 | 5 days | |
| MTB1010D2220UNMT7 | 1/2 | 20 | 22.3 | 22.3 | 73 | £110.03 | 5 days | |
| MTB12105C2612UNMT7 | 9/16 | 12 | 26.5 | 26.5 | 84 | £137.69 | 5 days | |
| MTB12113D2618UNMT7 | 9/16 5/8 - 1 1/8 1 5/8 | 18 | 26.1 | 26.1 | 84 | £137.69 | 5 days | |
| MTB12114C2811UNMT7 | 5/8 | 11 | 28.9 | 28.9 | 84 | £137.69 | 5 days | |
| MTB12116D3712UNMT7 | 9/16 | 12 | 37 | 37 | 84 | £165.20 | 5 days | |
| MTB1212D3116UNMT7 | 3/4 | 16 | 31 | 31 | 84 | £137.69 | 5 days | |
| MTB1212D3811UNMT7 | 5/8 | 11 | 38.1 | 38.1 | 84 | £165.20 | 5 days | |
| MTB1212E2720UNMT7 | 3/4 - 1 | 20 | 27.3 | 27.3 | 84 | £137.69 | 5 days | |
| MTB16144D3410UNMT7 | 3/4 | 10 | 34.3 | 34.3 | 105 | £162.44 | 5 days | |
| MTB16147E4910UNMT7 | 3/4 | 10 | 49.5 | 49.5 | 105 | £194.91 | In Stock | |
| MTB1616C389UNMT7 | 7/8 | 9 | 38.1 | 38.1 | 105 | £162.44 | 5 days | |
| MTB1616E3714UNMT7 | 7/8 | 14 | 37.2 | 37.2 | 105 | £162.44 | In Stock | |
| MTB1616E4112UNMT7 | 1 - 1 1/2 | 12 | 41.3 | 41.3 | 105 | £162.44 | 5 days | |
| MTB20195D428UNMT7 | 1 | 8 | 42.9 | 42.9 | 105 | £196.18 | 5 days | |
| MTB2020D457UNMT7 | 1 1/8 - 1 1/4 | 7 | 45.3 | 45.3 | 105 | £196.18 | 5 days |
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