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Tanoi NPT Tap Bright Straight Flute HSS-E V3 for most materials 1/2x14
| Style | Straight Flute |
| Form | NPT |
| Size | 1/2 |
| Pitch | 14 |
| Tolerance | ANSI B1.1 |
| Standard | DIN 40432 |
Learn more about Klarna
The Tanoi NPT Tap is a high-performance threading tool designed for 1/2-14 NPT fittings. Built for professional work, its straight-flute design and cobalt-enhanced HSS-E construction deliver clean, accurate threads across a broad range of materials in demanding environments.
- Thread Type: NPT (National Pipe Taper) thread design for compatibility with standard pipe fittings.
- Size: 1/2 x 14 NPT
- Flute Design: Straight flute to promote efficient chip evacuation and reduce cutting forces, helping produce smooth, true threads.
- Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance, suited to tougher materials.
- Finish: Bright finish for smooth cutting action and clear visibility of the thread profile.
- Applications: Ideal for threading pipe runs and fittings in industrial, maintenance, and fabrication environments.
With this combination of straight-flute design and cobalt-enhanced HSS-E construction, you’ll enjoy longer tool life, steadier cutting performance, and consistent thread quality even under high heat and demanding use. The tap delivers true, reliable NPT threads that seal well in fittings, helping you complete pipe projects efficiently and with less rework in shop or field settings.
| Style | Straight Flute |
| Form | NPT |
| Size | 1/2 |
| Pitch | 14 |
| Tolerance | ANSI B1.1 |
| Standard | DIN 40432 |
| Reach | N/A |
| Thread Direction | Right Hand |
| Substrate | HSS-E |
| Materials | Steels / Aluminium & Non Ferrous |
| Shank Diameter | 16 |
| Overall Length | 80 |
| Flute Length | 27 |
| Square | 12 |
| Drill Diameter | N/A |
| Finish | Oxide |
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: Tanoi Threading Taps - Straight Flute HSS-E NPT
View full collection →You are viewing 645.025. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Shank Diameter | Overall Length | Flute Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| 645.005 | 1/16 | 27 | 6 | 56 | 14 | £35.44 | 5 days | |
| 645.010 | 1/8 | 27 | 7 | 63 | 15 | £40.65 | In Stock | |
| 645.015 | 1/4 | 18 | 11 | 63 | 21 | £48.21 | 5 days | |
| 645.020 | 3/8 | 18 | 12 | 70 | 21 | £57.81 | In Stock | |
| 645.025 Viewing | 1/2 | 14 | 16 | 80 | 27 | £77.72 | 5 days | |
| 645.030 | 3/4 | 14 | 20 | 100 | 27 | £102.65 | In Stock | |
| 645.035 | 1 | 11 | 25 | 110 | 32 | £148.13 | In Stock |
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