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Carmex Thread Mills Carbide - Hard Type - UN (UNC UNF UNEF UNS) - 5/16, 9/16, 5/8, 11/16 x 18 - MT11
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 9/16 5/8 11/16 |
| Pitch | 18 |
| Diameter (D) | 5.7 |
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Description
Carmex Thread Mills Carbide – Hard Type are precision, solid carbide tools designed for demanding die and mold work and precision machining. Built to thread a wide range of materials, these mills combine threading and chamfering in a single pass to boost productivity without compromising accuracy. The MT11 shank and multi-diameter option set make them a versatile choice for high-speed, high-precision internal threads.
- Diameter range: 5/16", 9/16", 5/8", and 11/16" with 18 TPI (UNC/UNF/UNEF/UNS) to cover common coarse to fine thread specifications.
- Coating: High-wear, heat-resistant coating designed to extend tool life in challenging materials and high-temperature applications.
- Material: Solid carbide hard-type construction for exceptional rigidity and wear resistance in tough materials.
- MT11 shank: Compatible with standard tool holders for seamless integration into existing CNC setups.
- Multifunction design: Thread milling and chamfering performed by a single tool, reducing tool changes and cycle times.
- Increased cutting diameter: Improves rigidity and stability during heavy-duty threading and chamfering operations.
- Ultra-fine grade: Optimized for hardened materials, delivering precise, controlled cuts and short chip formation.
- Thread length: Up to 2xD, enabling deeper threads while maintaining strong wall integrity.
- Material compatibility: Excels on hardened steels and cast iron up to 62 HRc, high-temperature alloys, titanium, Hastelloy, Inconel, and nickel-base alloys.
This tool is purpose-built for the Die and Mold industry, delivering high cutting speeds, shorter machining times, and lower cutting forces thanks to its compact, rigid profile. By eliminating separate chamfering passes, it helps maintain tight tolerances, clean chip evacuation, and consistent thread quality across a range of tough materials.
Part Numbers
- Protool Part Number
- MTH08057C1418UNMT11
- Brand
- Carmex
- Category
- Thread Mill
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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 - UN (UNC, UNF, UNEF) - For Hard Materials Up To 62HRC (MTH)
View full collection →You are viewing MTH08057C1418UNMT11. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTH06025C640UNMT11 | No. 5 No. 6 | 40 | 6 | 6 | 58 | £129.17 | 5 days | |
| MTH06026C532UNMT11 | No. 6 | 32 | 6.5 | 6.5 | 58 | £129.17 | 5 days | |
| MTH06032C732UNMT11 | No. 8 | 32 | 8.1 | 8.1 | 58 | £129.17 | 5 days | |
| MTH06038C932UNMT11 | No. 10 No. 12 | 32 | 9.7 | 9.7 | 58 | £129.17 | 5 days | |
| MTH06048C1220UNMT11 | 1/4 | 20 | 12.1 | 12.1 | 58 | £129.17 | 5 days | |
| MTH08052D1128UNMT11 | 1/4 | 28 | 11.3 | 11.3 | 64 | £172.00 | 5 days | |
| MTH08057C1418UNMT11 Viewing | 5/16-11/16 | 18 | 14.8 | 14.8 | 64 | £172.00 | 5 days | |
| MTH08066D1424UNMT11 | 5/16-11/16 | 24 | 14.3 | 14.3 | 64 | £172.00 | 5 days | |
| MTH10074C1616UNMT11 | 3/8 3/4 | 16 | 16.7 | 16.7 | 73 | £198.53 | 5 days | |
| MTH10085D2014UNMT11 | 7/16 7/8 | 14 | 20.9 | 20.9 | 73 | £198.53 | 5 days | |
| MTH12092D2120UNMT11 | 7/16 1/2 3/4 1 | 20 | 21 | 21 | 84 | £248.34 | 5 days | |
| MTH12094D2213UNMT11 | 1/2 | 12 | 22.5 | 22.5 | 84 | £248.34 | 5 days | |
| MTH12096D2028UNMT11 | 7/16 1/2 | 28 | 20.4 | 20.4 | 84 | £248.34 | 5 days |
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