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Carmex Carbide Threading Insert - BSPT - TiAlN Coated - 12-19BSPT
| Application | Threading |
| Thread Form | BSPT |
| Internal or External | Internal & External |
| Insert Size | 12 |
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Carmex Carbide Threading Insert – BSPT with TiAlN coating is a versatile, high-precision option designed for BSPT threading tasks. Built for machinists and shops that demand reliable performance across common thread profiles, it combines durable carbide with advanced coating for longer tool life and steady results.
- Five length options: Choose from 12 mm to 40 mm to cover a wide range of thread pitches and applications, with capabilities from 0.5 mm / 32 TPI up to 6.0 mm / 4 TPI.
- TiAlN-coated carbide: The TiAlN coating enhances wear resistance and heat tolerance, helping maintain sharpness and finish in demanding threading operations.
- Double-sided cutting edges: Most inserts feature two cutting edges to maximize usable life and reduce downtime between index changes. (Exceptions apply for BSPT, NPT, NPTF, American Buttress, and API RD profiles.)
- Internal & external threading versatility: For many thread profiles, the same insert can machine both internal and external threads, simplifying tool management and reducing inventory. (Exceptions apply for ISO, UN, NPSM, UNJ, and Acme profiles.)
- Broad BSPT threading compatibility: Specifically formulated to address BSPT (British Standard Pipe Taper) threading needs, making it a practical choice for pipe fittings and related components.
This insert is engineered to deliver dependable performance across a range of BSPT threading jobs, from plumbing fittings to hydraulic components. The combination of multiple lengths, a robust TiAlN coating, and a practical double-edged design helps you achieve consistent thread quality, longer tool life, and smoother setup on turning operations. Whether you’re pursuing precision fits or efficient production runs, this Carmex insert offers a clear, reliable path to better threading results.
Part Numbers
- Protool Part Number
- 12-19BSPT
- 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.


