Please log in here to access all benefits, including promotional discounts and faster checkouts.
OSG Threading Tap - BSF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 3/4 x 12
| Form | BSF |
| Size | 3/4 |
| Pitch | 12 |
| Flute Length | 37 |
| Shank Diameter | 14 |
| Overall Length | 112 |
Learn more about Klarna
The OSG BSF Spiral Flute Threading Tap is a precision tapping tool designed for blind-hole work, built for machinists and maintenance professionals who demand accurate British Standard Fine threads. Crafted from HSS-E with a Steam Oxide coating, it combines toughness, heat resistance, and long tool life for demanding metalworking tasks.
- Size and Thread: 3/4" major diameter with 12 TPI BSF thread, optimized for blind-hole applications.
- Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and sustained cutting performance.
- Coating: Steam Oxide finish provides wear resistance and a smoother cutting action in challenging materials.
- Flute Design: Spiral flute geometry enables efficient chip evacuation, reducing clogging in deep or blind holes.
- Application: Ideal for precise, consistent threading in metalworking where access is limited to blind holes.
The combination of cobalt-enhanced HSS and a durable oxide coating helps maintain sharpness under heat and friction, delivering clean, accurate threads while extending tap life. The spiral flute design supports reliable chip removal, lowering the risk of tap binding or breakage during tapping operations. This tap is well-suited for shop floors, machine shops, and maintenance environments that tackle regular blind-hole threading in steel, cast iron, and similar metals.
| Form | BSF |
| Size | 3/4 |
| Pitch | 12 |
| Flute Length | 37 |
| Shank Diameter | 14 |
| Overall Length | 112 |
| Substrate | HSS-E |
| Style | Spiral Flute |
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 - BSF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole
View full collection →You are viewing OSG-22207394. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22207554 | 3/16 | 32 | 16 | 5 | 58 | £27.80 | In Stock | |
| OSG-22207564 | 7/32 | 28 | 17 | 5.6 | 62 | £39.10 | 1-2 days | |
| OSG-22207314 | 1/4 | 26 | 19 | 6.3 | 66 | £23.75 | In Stock | |
| OSG-22207324 | 5/16 | 22 | 22 | 8 | 72 | £26.94 | In Stock | |
| OSG-22207334 | 3/8 | 20 | 24 | 10 | 80 | £33.18 | In Stock | |
| OSG-22207344 | 7/16 | 18 | 25 | 8 | 85 | £46.91 | In Stock | |
| OSG-22207354 | 1/2 | 16 | 29 | 9 | 89 | £47.36 | In Stock | |
| OSG-22207364 | 9/16 | 16 | 30 | 11.2 | 95 | £62.59 | 1-2 days | |
| OSG-22207374 | 5/8 | 14 | 32 | 12.5 | 102 | £71.26 | In Stock | |
| OSG-22207394 Viewing | 3/4 | 12 | 37 | 14 | 112 | £106.89 | In Stock | |
| OSG-22207414 | 7/8 | 11 | 38 | 16 | 118 | £147.77 | 1-2 days | |
| OSG-22207424 | 1 | 10 | 45 | 18 | 130 | £175.57 | 1-2 days | |
| OSG-22207434 | 1.1/8 | 9 | 37 | 20 | 127 | £305.92 | 1-2 days | |
| OSG-22207444 | 1.1/4 | 9 | 37 | 22 | 137 | £389.36 | 1-2 days |
No products match your filters.
