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OSG Threading Tap - BSF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 7/8 x 11
| Form | BSF |
| Size | 7/8 |
| Pitch | 11 |
| Flute Length | 38 |
| Shank Diameter | 16 |
| Overall Length | 118 |
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Meet the OSG BSF Spiral Flute Threading Tap, engineered for precise blind-hole threading in metalworking. Designed for professionals who demand consistent, accurate British Standard Fine threads, this HSS-E tap with steam oxide coating delivers dependable performance from first cut to final thread.
- Flute Design: Spiral flute geometry for efficient chip evacuation in blind holes, reducing tool stoppages and breakages.
- Material: HSS-E (high-speed steel with cobalt) for enhanced heat resistance and longer tool life in demanding materials.
- Coating: Steam oxide coating provides durable wear resistance and smoother cutting action under heavy use.
- Size and Thread: 7/8" diameter with 11 threads per inch, tailored for British Standard Fine (BSF) thread styles.
- Application: Optimized for blind-hole tapping, enabling clean, accurate thread formation with minimal finishing required.
The combination of a robust cobalt-enhanced substrate, a protective steam oxide finish, and the spiral flute’s superior chip control translates to reliable performance in critical machining tasks. Expect precise thread engagement, extended tool life, and fewer reworks when fabricating BSF threads in metal components, jigs, and fixtures.
| Form | BSF |
| Size | 7/8 |
| Pitch | 11 |
| Flute Length | 38 |
| Shank Diameter | 16 |
| Overall Length | 118 |
| Substrate | HSS-E |
| Style | Spiral Flute |
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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-22207414. 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 | 3/4 | 12 | 37 | 14 | 112 | £106.89 | In Stock | |
| OSG-22207414 Viewing | 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 |
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