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OSG Threading Tap - UNC Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 3/4 x 10
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Description
The OSG UNC Spiral Flute Threading Tap is a precision tool tailored for professionals who do blind-hole threading in demanding metals. Built with cobalt-enhanced HSS (HSS-E) and finished with a Steam Oxide coating, it delivers reliable performance and extended life in tough machining environments.
- Thread Size: 3/4-10 UNC (coarse) for standard Unified National Coarse threads in metalworking applications
- Material: HSS-E (high-speed steel with cobalt) for superior wear resistance and heat tolerance
- Coating: Steam oxide coating to improve corrosion resistance and reduce friction during cutting
- Flute Design: Spiral flute geometry optimizes chip evacuation, helping prevent clogging in blind-hole tapping
- Application Focus: Specifically optimized for blind-hole threading to deliver clean, accurate threads
- Technology & Life: OSG’s advanced threading geometry supports consistent thread form and extended tool life
This tap enables precise, dependable thread creation with minimal rework. The spiral flute design reduces chip buildup in blind holes, while the HSS-E cobalt composition and durable steam-oxide coating provide longevity and stable performance across materials that demand heat resistance. Ideal for maintenance, fabrication, and production tasks where accurate UNC threads and reusable tooling matter.
Part Numbers
- Protool Part Number
- OSG-22205154
- Brand
- OSG
- Category
- Threading Tap
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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 - UNC Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole
View full collection →You are viewing OSG-22205154. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22204534 | No. 2 | 56 | 9.5 | 2.8 | 44.5 | £64.30 | In Stock | |
| OSG-22204554 | No. 3 | 48 | 9.5 | 2.8 | 44.5 | £64.30 | In Stock | |
| OSG-22204574 | No. 4 | 40 | 11 | 3.15 | 48 | £39.97 | In Stock | |
| OSG-22204594 | No. 5 | 40 | 11 | 3.15 | 48 | £39.97 | 1-2 days | |
| OSG-22204614 | No. 6 | 32 | 13 | 3.55 | 50 | £24.13 | In Stock | |
| OSG-22204644 | No. 8 | 32 | 13 | 4.5 | 53 | £24.13 | In Stock | |
| OSG-22204664 | No. 10 | 24 | 16 | 5 | 58 | £24.13 | In Stock | |
| OSG-22204684 | No. 12 | 24 | 17 | 5.6 | 62 | £29.55 | 1-2 days | |
| OSG-22204714 | 1/4 | 20 | 19 | 6.3 | 66 | £20.00 | In Stock | |
| OSG-22204744 | 5/16 | 18 | 22 | 8 | 72 | £23.19 | In Stock | |
| OSG-22204794 | 3/8 | 16 | 24 | 10 | 80 | £29.55 | In Stock | |
| OSG-22204844 | 7/16 | 14 | 25 | 8 | 85 | £41.11 | In Stock | |
| OSG-22204894 | 1/2 | 13 | 29 | 9 | 89 | £41.63 | In Stock | |
| OSG-22204944 | 9/16 | 12 | 30 | 11.2 | 95 | £53.03 | In Stock | |
| OSG-22205014 | 5/8 | 11 | 32 | 12.5 | 102 | £61.69 | In Stock | |
| OSG-22205154 Viewing | 3/4 | 10 | 37 | 14 | 112 | £92.73 | In Stock | |
| OSG-22205264 | 7/8 | 9 | 38 | 16 | 118 | £128.64 | In Stock | |
| OSG-22205384 | 1 | 8 | 45 | 18 | 130 | £154.71 | In Stock | |
| OSG-22205514 | 1.1/8 | 7 | 48 | 20 | 138 | £265.95 | 1-2 days | |
| OSG-22205644 | 1.1/4 | 7 | 51 | 22.4 | 151 | £338.98 | In Stock |
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