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Carmex Thread Mills Carbide - Through Coolant (Flutes) - Whitworth BSW BSF - 5/8, 7/8 x 11 - MT7
| Thread Form | Whitworth BSW BSF |
| Size | 5/8 7/8 |
| Pitch | 11 |
| Diameter (D) | 10.9 |
| Flute Length (l) | 28.9 |
| Shank Diameter (d) | 12 |
Learn more about Klarna
The Carmex MTZ carbide thread mill is a through-coolant cutting tool engineered for precise Whitworth BSW and BSF threading in through-holes. It’s built for shops that demand consistent thread quality, reliable chip control, and versatility on machines without external coolant systems.
- Through-Coolant Flute Design: Internal channels deliver coolant directly to the cutting edge, improving cooling, reducing wear, and enhancing surface finish.
- Carbide Construction: Rigid, high-precision carbide body enables stable threading at higher speeds and with demanding materials.
- Whitworth BSW/BSF Thread Forms: Specifically engineered to produce accurate Whitworth thread profiles for standard and fine-pitch applications.
- MT7 Shank: Morse Taper 7 shank fits a wide range of milling machines for secure retention and smooth tool changes.
- Through-Hole Thread Milling: Optimized geometry supports threading through holes with direct chip removal, reducing clogging and cycle time.
- Size and Pitch: Available in 5/8" and 7/8" diameters with 11 threads per inch (11 TPI) to match common Whitworth specifications.
With direct coolant delivery at the cutting edge and an efficient chip-removal strategy, this tool delivers dependable thread quality across materials while minimizing heat buildup. Its through-hole threading capability simplifies setups, eliminates the need for external coolant routing on many machines, and supports reliable, repeatable Whitworth threads in demanding industrial applications.
| Thread Form | Whitworth BSW BSF |
| Size | 5/8 7/8 |
| Pitch | 11 |
| Diameter (D) | 10.9 |
| Flute Length (l) | 28.9 |
| Shank Diameter (d) | 12 |
| No of Flutes | 4 |
| Overall Length (L) | 84 |
| Thread Mill Style | Standard + Coolant (Flutes) |
| Internal or External | Internal & External |
| Coating | MT7 |
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 - Whitworth - With Internal Coolant Through The Flutes (MTZ)
View full collection →You are viewing MTZ12109D2811WMT7. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Reach | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MTZ06046C1220WMT7 | 1/4 3/8 | 20 | 12.1 | 12.1 | 58 | £104.60 | In Stock | |
| MTZ06053C1418WMT7 | 5/16 7/16 | 18 | 14.8 | 14.8 | 58 | £104.60 | In Stock | |
| MTZ08068C1616WMT7 | 3/8 | 16 | 16.7 | 16.7 | 64 | £136.21 | 5 days | |
| MTZ08078D2014WMT7 | 7/16 5/8 - 11/16 | 14 | 20.9 | 20.9 | 64 | £136.21 | 5 days | |
| MTZ10086D2412WMT7 | 1/2 3/4 - 13/16 | 12 | 24.4 | 24.4 | 73 | £157.69 | 5 days | |
| MTZ10092D2416WMT7 | 1/2 - 9/16 | 16 | 24.6 | 24.6 | 73 | £157.69 | 5 days | |
| MTZ12109D2811WMT7 Viewing | 5/8 7/8 | 11 | 28.9 | 28.9 | 84 | £195.69 | 5 days |
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