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

Carmex Thread Mills Carbide - Through Coolant (Flutes) - NPT - 1/4 - 3/8 x 19 - MT7
| Thread Form | NPT |
| Size | 1/4 - 3/8 |
| Pitch | 19 |
| Diameter (D) | 10 |
Learn more about Klarna
Compatible goes with this
The ones our customers buy most.Description
The Carmex MTZ carbide thread mill with through-coolant is a precision tool designed for through-hole NPT threading. Built for shops and manufacturers that demand clean, accurate threads with efficient chip evacuation, it excels in challenging through-hole applications while simplifying coolant delivery.
- Tool family: MTZ carbide thread mill with through-flute cooling for direct coolant delivery to the cutting edge.
- Shank type: MT7 Morse taper shank, compatible with a wide range of milling machines for quick tool changes.
- Threading capability: NPT threads in through-holes, sized from 1/4" to 3/8" with 19 TPI.
- Coolant delivery: Through-flute design channels coolant directly to the cutting edge, enhancing cooling and flushing of chips.
- Material: Solid carbide construction for high rigidity, heat resistance, and long tool life.
- Chip removal: Direct chip exit through the hole simplifies machining and reduces heat buildup at the tip.
- Surface finish: Designed to produce consistent, tight-thread profiles with improved surface quality on through-hole engagements.
This tool is ideal for production environments that require reliable NPT threading in through-holes, where traditional external coolant setups are limited or unavailable. The through-coolant capability minimizes thermal distortion and wear, enabling higher cutting speeds and longer interval tooling. Whether you’re threading hydraulic components, fittings, or pipe assemblies, this MTZ thread mill delivers stable performance, reduced rework, and straightforward setup—no need for external coolant plumbing on compatible machines.
Part Numbers
- Protool Part Number
- MTZ1010D1618NPTMT7
- 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 - NPT - With Internal Coolant Through The Flutes (MTZ)
View full collection →You are viewing MTZ1010D1618NPTMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTZ08076C1027NPTMT7 | 1/8 | 27 | 10.8 | 10.8 | 64 | £181.61 | 5 days | |
| MTZ1010D1618NPTMT7 Viewing | 1/4 - 3/8 | 19 | 16.2 | 16.2 | 73 | £210.25 | 5 days | |
| MTZ16155D2214NPTMT7 | 1/2 - 3/4 | 14 | 22.7 | 22.7 | 101 | £315.44 | 5 days |
No products match your filters.






