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 x 11.5 - MT7
| Thread Form | NPTF |
| Size | 1 - 2 |
| Pitch | 11.5 |
| Diameter (D) | 20 |
Learn more about Klarna
Compatible goes with this
The ones our customers buy most.Description
Carmex MTB Solid Carbide Thread Mills with Through Coolant deliver precise NPTF internal threads while keeping chip control and tool life at the forefront. Built for demanding production environments, these tools are ideal for shops needing reliable, high-precision threading in deep or intricate holes.
- Through-Coolant bore: Coolant is delivered directly through the cutting bore, enhancing chip evacuation and cooling at the point of cut for cleaner threads and cooler operation in challenging materials.
- Solid carbide construction: Rigid, wear-resistant carbide provides stable, accurate threading and extended tool life in demanding metals.
- NPTF internal threading: Specifically designed to produce precision NPTF threads, enabling tight tolerances for pipe fittings, hydraulics, and fluid systems.
- MT7 shank: High-rigidity MT7 shank ensures strong torque transmission and compatibility with premium CNC milling centers for consistent hole quality.
- MTB line innovation: Part of Carmex’s MTB thread mill family, combining efficient coolant delivery with robust cutting geometry to maximize uptime and reduce rework.
- Dimensions: Size 1 - 2 x 11.5 with through-coolant capability and MT7 connection for compact, repeatable deployments.
The integrated through-coolant design minimizes heat buildup and enables reliable chip removal, which translates to smoother finishing passes, fewer reworks, and longer tool life. This makes the Carmex MTB thread mills a practical choice for high-volume production lines where consistent thread quality and reduced maintenance matter most.
Part Numbers
- Protool Part Number
- MTB2020D2911.5NPTFMT7
- 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 MTB2020D2911.5NPTFMT7. 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 | 1/2 - 3/4 | 14 | 22.7 | 22.7 | 16 | 105 | £216.59 | 5 days | |
| MTB2020D2911.5NPTFMT7 Viewing | 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.







