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Tanoi NPT Tap Bright Straight Flute HSS-E V3 for most materials 3/8x18
| Style | Straight Flute |
| Form | NPT |
| Size | 3/8 |
| Pitch | 18 |
| Tolerance | ANSI B1.1 |
| Standard | DIN 40432 |
Learn more about Klarna
The Tanoi NPT Tap in 3/8x18 is a professional-grade threading tool designed for reliable pipe work and fabrication projects. Crafted from cobalt-enhanced HSS-E, it delivers durable performance and consistent results across a wide range of materials.
- Size & thread form: 3/8" NPT with a 3/8-18 thread pattern, suitable for standard pipe fittings.
- Material & coating: HSS-E with added cobalt for higher hardness and improved heat resistance.
- Flute design: Straight flute geometry that promotes smooth chip evacuation and reduced cutting forces.
- Material compatibility: Effective on a broad spectrum of materials, including metals and some plastics, for versatile use.
- Durability & geometry: Designed to maintain sharpness under demanding industrial conditions, extending tool life.
This tap yields clean, accurate NPT threads that seal reliably in pipe systems, hydraulics, and pneumatics. The straight-flute design minimizes chatter and chip buildup, helping you achieve precise threading with fewer reworks. Ideal for both shop floors and field installations, the Tanoi NPT Tap combines robust construction with practical performance to streamline pipe-threading tasks and deliver dependable results over time.
| Style | Straight Flute |
| Form | NPT |
| Size | 3/8 |
| 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 | 12 |
| Overall Length | 70 |
| 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 645.020. 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 Viewing | 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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