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 20 - MT7
| Thread Form | UN (UNC UNF UNEF UNS) |
| Size | N/A |
| Pitch | 20 |
| Diameter (D) | 12 |
Learn more about Klarna
Description
Carmex MTQ Long Reach Through-Coolant Thread Mills are the threading solution designed for machinists tackling medium to large threads in deep pockets and base-level features. This 20‑piece MT7 set provides reliable, precise threading with through‑coolant delivery across UN, UNC, UNF, UNEF, and UNS standards.
- Thread compatibility: Covers UN, UNC, UNF, UNEF, and UNS threads for versatile use in a single set.
- Long reach design: Optimized for deep holes, pockets, and base-side threading without repositioning the workpiece.
- Through‑coolant bore: Internal coolant channel delivers coolant directly to the cutting edge for improved chip evacuation and tool life.
- MT7 shank: Strong, rigid interface compatible with standard MT7 milling spindles for steady performance.
- Thread length capability: Thread lengths up to 3D to handle longer engagement in challenging geometries.
- High rigidity and stability: Engineered to minimize vibrations, enabling higher cutting speeds and feeds and shorter cycle times.
- Overhang support: Designed to maintain performance when used with extended reach in complex setups.
- Low cutting forces: Short cutting length helps keep cutting forces manageable, improving finish and tool life.
- Included quantity: 20 tools in the set, ready for a range of threading tasks.
By combining a long-reach profile with through-coolant delivery, these threads mills deliver precise, repeatable results even in deep cavities and base features. The MTQ design emphasizes rigidity to reduce chatter, enabling faster speeds and feeds to shorten cycle times. An internal coolant bore keeps chips moving away from the cutting edge, enhancing surface finish and extending tool life. With overhang capability and a compact cutting length, you can tackle base threading and deep-pocket work in a single setup, boosting productivity and consistency across jobs.
Part Numbers
- Protool Part Number
- MTQ1212E3520UNMT7
- 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 MTQ1212E3520UNMT7. 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 | 18 | 19.7 | 35.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212D4212UNMT7 | 12 | 25.4 | 42.3 | 12 | 84 | £166.90 | 5 days | |
| MTQ1212E3520UNMT7 Viewing | 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.






