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Tanoi NPT Tap Bright Straight Flute HSS-E V3 for most materials 1/4x18
| Style | Straight Flute |
| Form | NPT |
| Size | 1/4 |
| Pitch | 18 |
| Tolerance | ANSI B1.1 |
| Standard | DIN 40432 |
Learn more about Klarna
The Tanoi NPT Tap is a precision threading tool designed for reliable 1/4-18 NPT pipe threads across a wide range of materials. Built for professionals who demand durability and consistent results, it delivers clean, accurate threads with minimal effort.
- NPT Thread Design: Specifically cut for 1/4-18 NPT fittings, ensuring compatibility with standard pipe hardware for dependable seals.
- Straight Flute Geometry: Straight flute layout promotes smooth chip evacuation and reduces cutting forces for steadier tapping.
- HSS-E with Enhanced Cobalt: High-speed steel with added cobalt provides exceptional wear resistance and heat tolerance in demanding applications.
- Bright Finish: Brighted surface enhances visibility during cutting and contributes to improved performance.
- Size and Compatibility: 1/4" nominal size with 18 threads per inch (1/4-18 NPT), suitable for a broad range of pipe threading tasks.
- Durability for Demanding Environments: Designed to endure industrial workloads, maintaining sharpness and accuracy over extended use.
These features translate into practical benefits: you’ll achieve precise, leak-tight NPT connections with fewer reworks, enjoy clearer thread formation, and experience longer tool life even when threading tougher materials. Ideal for plumbing, mechanical fabrication, and maintenance projects, this tap helps you complete pipe-threading tasks efficiently and with consistent quality.
| Style | Straight Flute |
| Form | NPT |
| Size | 1/4 |
| Pitch | 18 |
| Tolerance | ANSI B1.1 |
| Standard | DIN 40432 |
| Reach | N/A |
| Thread Direction | Right Hand |
| Substrate | HSS-E |
| Materials | Steels / Aluminium & Non Ferrous |
| Shank Diameter | 11 |
| Overall Length | 63 |
| Flute Length | 21 |
| Square | 9 |
| 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 645.015. 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 Viewing | 1/4 | 18 | 11 | 63 | 21 | £48.21 | 5 days | |
| 645.020 | 3/8 | 18 | 12 | 70 | 21 | £57.81 | In Stock | |
| 645.025 | 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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