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OSG Threading Tap - NPT Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 3/4 x 14
| Form | NPT |
| Size | 3/4 |
| Pitch | 14 |
| Flute Length | 1.3/8 |
| Shank Diameter | 0.906 |
| Overall Length | 3.1/4 |
Learn more about Klarna
The OSG NPT Spiral Point Threading Tap is a high-performance tool designed for precise internal NPT threading in through-hole workpieces. Built for machinists and fabricators who demand reliability and efficiency, it delivers durable, accurate threads with extended tool life.
- Material: HSS-E (high-speed steel with cobalt) for superior hardness and heat resistance.
- Coating: Steam Oxide finish that enhances wear resistance and reduces friction during cutting.
- Threading design: Spiral point geometry promotes fast chip evacuation in through-hole applications.
- Thread size: 3/4-14 NPT (3/4 x 14) for standard pipe-thread connections.
- Application: Through-hole tapping, optimized to cut accurate internal NPT threads in pre-drilled holes.
- Precision: Engineered by OSG to deliver consistent thread pitch and a smooth, clean finish.
This tap enables quicker machining cycles thanks to its efficient chip control and the durability of HSS-E cobalt. The steam oxide coating extends tool life under typical shop conditions, reducing downtime and rework. With precise 3/4-14 NPT threads, you can achieve dependable fittings and sealing when used with proper sealing practices, making it a reliable choice for hydraulic, pneumatic, and general pipe-threading tasks.
| Form | NPT |
| Size | 3/4 |
| Pitch | 14 |
| Flute Length | 1.3/8 |
| Shank Diameter | 0.906 |
| Overall Length | 3.1/4 |
| Substrate | HSS-E |
| Style | Spiral Point |
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: OSG Threading Taps - NPT Spiral Point HSS-E - Steam Oxide Coated - Through Hole
View full collection →You are viewing OSG-22628804. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22628764 | 1/8 | 27 | 0.75 | 0.318 | 2.1/8 | £69.52 | In Stock | |
| OSG-22628774 | 1/4 | 18 | 1.1/16 | 0.429 | 2.7/16 | £95.62 | In Stock | |
| OSG-22628784 | 3/8 | 18 | 1.1/16 | 5.542 | 3.3/16 | £112.98 | In Stock | |
| OSG-22628794 | 1/2 | 14 | 1.3/8 | 0.687 | 3.1/8 | £139.05 | In Stock | |
| OSG-22628804 Viewing | 3/4 | 14 | 1.3/8 | 0.906 | 3.1/4 | £201.63 | 1-2 days | |
| OSG-22628814 | 1 | 11.5 | 1.3/4 | 1.125 | 3.3/4 | £272.89 | 1-2 days |
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