Please log in here to access all benefits, including promotional discounts and faster checkouts.

Carmex Thread Mills Solid Carbide - With Through Coolant - NPS - 1/2 - 3/4 x 14 - MT7
| Thread Form | NPS |
| Size | 1/2 - 3/4 |
| Pitch | 14 |
| Diameter (D) | 15.5 |
Learn more about Klarna
Description
Carmex MTB Solid Carbide Through-Coolant Thread Mills are precision tools built for reliable NPS 1/2–3/4 x 14 threading in through-holes. Built on the trusted MT platform, these MTB tools add a cutting-edge through-bore coolant feature to deliver cooling and chip evacuation exactly where you need it.
- Through-coolant bore: Coolant is delivered directly through the tool bore to the cutting edges, improving chip removal and heat control inside the threaded bore.
- Solid carbide construction: Rigid, wear-resistant carbide provides stable threading performance at higher speeds and longer tool life.
- Thread milling geometry: Optimized flute design and geometry for consistent thread profiles and smooth surface finish on through-holes.
- Size and threading: Designed for NPS 1/2–3/4 with 14 threads per inch, ideal for versatile through-hole applications.
- MT7 shank: Standard MT7 shank for secure fit and compatibility with common high-precision milling holders.
- Applications: Perfect for precision thread milling in through-holes across steel, aluminum, and other common machining materials, reducing the need for tapping and enabling efficient production.
- Durability and efficiency: The through-coolant system paired with carbide composition helps extend tool life and maintain consistent thread quality over longer production runs.
These through-coolant thread mills streamline your workflow by improving chip clearance and cooling within the hole, leading to cleaner threads, fewer reworks, and lower tooling costs over time. For shops seeking dependable, high-precision NPS threading in through-holes, Carmex MTB solid carbide tools deliver consistent results with the reliability you expect from a proven MT-series platform.
Part Numbers
- Protool Part Number
- MTB0625D0814NPSMT7
- 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 Solid Carbide Thread Mills - NPS - With Through Coolant (MTB)
View full collection →You are viewing MTB0625D0814NPSMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MTB0312C0427NPSMT7 | 1/8 | 27 | 10.8 | 10.8 | 5/16 | 63 | £127.18 | 5 days | |
| MTB0375D0618NPSMT7 | 1/4 - 3/8 | 18 | 16.2 | 16.2 | 3/8 | 76 | £146.70 | 5 days | |
| MTB0625D0814NPSMT7 Viewing | 1/2 - 3/4 | 14 | 22.7 | 22.7 | 5/8 | 101 | £216.59 | 5 days | |
| MTB0750D1111.5NPSMT7 | 1 - 2 | 11.5 | 29.8 | 29.8 | 3/4 | 101 | £261.57 | 5 days |
No products match your filters.






