Please log in here to access all benefits, including promotional discounts and faster checkouts.
Carmex Thread Mills Long Reach Through Coolant - UN (UNC UNF UNEF UNS) - x 18 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | N/A |
| Pitch | 18 |
| Diameter (D) | 12 |
Learn more about Klarna
Description
Carmex Thread Mills Long Reach Through Coolant are engineered for internal threading of UN profiles (UNC, UNF, UNEF, UNS) in medium to large sizes, with a focus on deep workpieces and base-side features. Built for MT7 spindles, these tools deliver reliable precision and versatility in challenging machining scenarios.
- Through-Coolant Design: internal coolant bore directs cooling to the cutting edges for better temperature control, chip evacuation, and extended tool life.
- Long Reach Geometry: optimized long-protrusion profile to reach deep pockets and base-side threads without sacrificing rigidity.
- UN Thread Compatibility: specifically shaped to mill internal UNC, UNF, UNEF, and UNS threads with consistent pitch and surface finish.
- MT7 Shank Interface: rigid MT7 shank provides secure seating and minimal runout for stable, accurate milling in demanding workpieces.
- Rigid Cutting Action: design minimizes vibrations during threading, enabling higher speeds and feeds for shorter cycles without compromising thread quality.
- Depth-Ready Performance: capable of handling thread milling in deep features and at base positions, expanding the range of manufacturable geometries.
By combining long reach, through-coolant delivery, and a stable MT7 interface, Carmex Long Reach Through-Coolant Thread Mills deliver precise UN-threading in challenging workpieces—from automotive components to aerospace inserts and mold features. Expect cleaner thread profiles, improved surface finish, and more efficient cycles in deep or base-side applications.
Part Numbers
- Protool Part Number
- MTQ1212D3518UNMT7
- 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 - With Relieved Neck & Internal Coolant Bore (MTQ)
View full collection →You are viewing MTQ1212D3518UNMT7. Click any other SKU to view its full details.
| Product SKU | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTQ1010D3020UNMT7 | 20 | 17.8 | 30.5 | 10 | 73 | £133.36 | 5 days | |
| MTQ1212D3516UNMT7 | 16 | 20.7 | 35 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212D3518UNMT7 Viewing | 18 | 19.7 | 35.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212D4212UNMT7 | 12 | 25.4 | 42.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212E3520UNMT7 | 20 | 20.3 | 35.6 | 12 | 84 | £166.90 | 5 days | |
| MTQ1616E4216UNMT7 | 16 | 25.4 | 42.9 | 16 | 105 | £196.90 | 5 days | |
| MTQ1616E4514UNMT7 | 14 | 25.4 | 45.3 | 16 | 105 | £196.90 | 5 days | |
| MTQ1616F4320UNMT7 | 20 | 25.4 | 43.2 | 16 | 105 | £196.90 | 5 days | |
| MTQ2020E5512UNMT7 | 12 | 33.9 | 55.1 | 20 | 105 | £237.79 | 5 days | |
| MTQ2020F5816UNMT7 | 16 | 36.5 | 58.8 | 20 | 105 | £237.79 | 5 days |
No products match your filters.
