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Carmex Thread Mills Multifunction - Hard Type - UN (UNC UNF UNEF UNS) - 5/16 - 7/16 x 18 - MT11
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | 5/16 - 7/16 |
| Pitch | 18 |
| Diameter (D) | 6 |
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Description
Carmex DMTH Thread Mills Multifunction Hard Type are engineered for precision internal threading in challenging materials, delivering reliable performance across hardened steels, stainless steels, and high‑performance alloys. Designed to cover both ISO and UN thread profiles, these tools provide versatility in a single, durable solution.
- Thread profiles: Supports ISO and UN threads, including UNC, UNF, UNEF, and UNS, for broad compatibility with common engineering requirements.
- Material capability: Hard‑type design optimized for tough materials, enabling accurate threads in hardened steels, stainless steel, and demanding alloys.
- Depth capability: Thread depth up to 2× the thread diameter, offering flexibility for deeper holes and robust thread engagement.
- Flute configuration: Multi‑flute geometry with 3–4 flutes to balance cutting efficiency, chip evacuation, and surface finish.
- Size and compatibility: Thread sizes from 5/16" to 7/16" with 18 TPI, paired with MT11 shank compatibility for dependable tooling in common milling setups.
This multifunction thread mill is built to simplify production with fewer tool changes while delivering consistent, tight tolerances. Ideal for job shops and precision manufacturers, it empowers you to thread complex parts in a single operation, maintaining accuracy across a range of profiles and materials. From aerospace components to automotive assemblies, the DMTH line stands out for reliability, versatility, and durable performance in demanding threading tasks.
Part Numbers
- Protool Part Number
- DMTH0806D1918UNMT11
- 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 - 3 IN 1 Multifunction For Hard Materials (DMTH)
View full collection →You are viewing DMTH0806D1918UNMT11. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| DMTH06021C740UNMT11 | No. 4 No. 5 No. 6 | 40 | 7 | 6 | 58 | £124.68 | 5 days | |
| DMTH06026C832UNMT11 | No. 6 | 32 | 8.7 | 6 | 58 | £124.68 | 5 days | |
| DMTH08048C1520UNMT11 | 1/4 - 3/8 | 20 | 15.6 | 8 | 64 | £166.24 | 5 days | |
| DMTH0805C1428UNMT11 | 1/4 - 3/8 | 28 | 14.9 | 8 | 64 | £166.24 | 5 days | |
| DMTH08065D1824UNMT11 | 5/16 - 1/2 | 24 | 18.5 | 8 | 64 | £166.24 | 5 days | |
| DMTH08067C2216UNMT11 | 3/8 - 1/2 | 16 | 22.8 | 8 | 64 | £166.24 | 5 days | |
| DMTH0806D1918UNMT11 Viewing | 5/16 - 7/16 | 18 | 19.2 | 8 | 64 | £166.24 | 5 days | |
| DMTH10092C3013UNMT11 | 1/2 | 13 | 30 | 10 | 73 | £215.14 | 5 days | |
| DMTH12114C3711UNMT11 | 5/8 | 11 | 37 | 12 | 84 | £254.92 | 5 days |
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