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

Carmex Thread Mills Solid Carbide - With Through Coolant - NPTF - 1/2 - 3/4 x 14 - MT7
| Thread Form | NPTF |
| Size | 1/2 - 3/4 |
| Pitch | 14 |
| Diameter (D) | 15.5 |
Learn more about Klarna
Compatible goes with this
The ones our customers buy most.Description
Introducing Carmex MTB solid carbide thread mills with through coolant, engineered for precise NPTF internal threads on 1/2"–3/4" diameters (14 TPI). The MT7 shank delivers rigid, repeatable performance in demanding production environments.
- Thread Form and Size: NPTF threads for 1/2"–3/4" major diameter with 14 threads per inch (14 TPI).
- Through-Coolant Bore: Coolant is delivered through the tool bore to the cutting edge, enhancing chip removal and reducing cutting temperatures.
- Solid Carbide Construction: High-hardness carbide core provides rigidity, wear resistance, and extended tool life under demanding cutting conditions.
- MT7 Shank: MT7 taper ensures secure, stable seating in compatible milling centers for accurate threading results.
- Applications: Ideal for hydraulic and pneumatic components, manifolds, and precision fixtures that require reliable internal NPTF threads with consistent tolerances.
Through-coolant capability and the rugged carbides work together to keep chips moving and heat under control, delivering cleaner threads, steadier tolerances, and longer tool life. The MTB design focus supports longer production runs with fewer tool changes, making this tool a dependable choice for high-demand threading tasks. Whether you’re threading hydraulic blocks or automotive fixtures, this mill provides repeatable performance, helps minimize rework, and supports efficient, cost-conscious manufacturing.
Part Numbers
- Protool Part Number
- MTB16155D2214NPTFMT7
- 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 - NPTF - With Through Coolant (MTB)
View full collection →You are viewing MTB16155D2214NPTFMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MTB08076C1027NPTFMT7 | 1/8 | 27 | 10.8 | 10.8 | 8 | 64 | £127.18 | 5 days | |
| MTB1010D1618NPTFMT7 | 1/4 - 3/8 | 18 | 16.2 | 16.2 | 10 | 73 | £146.70 | 5 days | |
| MTB16155D2214NPTFMT7 Viewing | 1/2 - 3/4 | 14 | 22.7 | 22.7 | 16 | 105 | £216.59 | 5 days | |
| MTB2020D2911.5NPTFMT7 | 1 - 2 | 11.5 | 29.8 | 29.8 | 20 | 105 | £261.57 | 5 days | |
| MTB2020D398NPTFMT7 | 2 1/2 + | 8 | 39.7 | 39.7 | 20 | 105 | £261.57 | 5 days |
No products match your filters.







