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Carmex Thread Mills Carbide - Through Coolant (Flutes) - Whitworth BSW BSF - 1/2, 3/4 - 13/16 x 12 - MT7
| Thread Form | Whitworth BSW BSF |
| Size | 1/2 3/4 - 13/16 |
| Pitch | 12 |
| Diameter (D) | 8.6 |
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Description
The Carmex MTZ Through-Coolant Carbide Thread Mill is engineered for precise Whitworth threading in through-hole applications. Designed for shops that need reliable performance even on machines without external coolant, this tool delivers coolant directly to the cutting edge for smoother, more efficient threading.
- Through-Coolant Flutes: Integrated coolant channels route fluid directly to the cutting edge, improving chip evacuation and reducing heat for consistent thread formation.
- Carbide Construction: High-hardness carbide provides exceptional wear resistance and long tool life under demanding threading conditions.
- Whitworth BSW/BSF Thread Forms: Optimized geometry tailored to standard Whitworth thread profiles for accurate, clean finishes.
- Two Size Options: Available in 1/2" and 3/4" variants to address common through-hole threading tasks (paired with a 13/16" x 12 TPI thread form).
- 13/16" Cutting Diameter x 12 TPI: Precisely sized to achieve the correct Whitworth thread profile with a 12 threads-per-inch pitch.
- MT7 Shank: Phosphate-minished MT7 shank ensures compatibility with a wide range of milling machines for solid rigidity during operation.
- Direct Chip Removal: Tool geometry supports easy chip evacuation from through holes, minimizing downtime and clogging.
This thread mill is ideal for through-hole assemblies in industries like automotive, hydraulics, and aerospace where Whitworth threads are common and coolant setups are limited. The combination of through-coolant delivery, robust carbide construction, and MT7 compatibility translates into reliable thread formation, improved surface finish, and longer tool life—even when machining challenging materials or tight tolerances. With its focused design for BSW and BSF threads, it offers a practical, high-performance threading solution that reduces rework and speeds up production.
Part Numbers
- Protool Part Number
- MTZ10086D2412WMT7
- 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 - Whitworth - With Internal Coolant Through The Flutes (MTZ)
View full collection →You are viewing MTZ10086D2412WMT7. 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 | £139.46 | In Stock | |
| MTZ06053C1418WMT7 | 5/16 7/16 | 18 | 14.8 | 14.8 | 58 | £139.46 | In Stock | |
| MTZ08068C1616WMT7 | 3/8 | 16 | 16.7 | 16.7 | 64 | £181.61 | 5 days | |
| MTZ08078D2014WMT7 | 7/16 5/8 - 11/16 | 14 | 20.9 | 20.9 | 64 | £181.61 | 5 days | |
| MTZ10086D2412WMT7 Viewing | 1/2 3/4 - 13/16 | 12 | 24.4 | 24.4 | 73 | £210.25 | 5 days | |
| MTZ10092D2416WMT7 | 1/2 - 9/16 | 16 | 24.6 | 24.6 | 73 | £210.25 | 5 days | |
| MTZ12109D2811WMT7 | 5/8 7/8 | 11 | 28.9 | 28.9 | 84 | £260.92 | 5 days |
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