Dispatch Hours
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
- Mon – Thurs8:00 – 17:00
- Friday8:00 – 16:30
- Sat & SunClosed
OSG
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Authorised UK Distributor
OSG Threading Taps
UNC Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole
OSG's UNC spiral flute taps cut Unified National Coarse threads and pull the chip back up out of the hole as they go, which is what a blind hole needs. HSS-E cobalt steel with a steam oxide black-oxide coating. All held in UK stock.
Click any SKU to view full product details, specifications and datasheets.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-23204574 | No. 4 | 40 | 11 | 3.15 | 48 | £89.94 | 1-2 days |
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| OSG-23204594 | No. 5 | 40 | 11 | 3.15 | 48 | £89.94 | 1-2 days |
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| OSG-23204614 | No. 6 | 32 | 13 | 3.55 | 50 | £54.37 | In Stock |
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| OSG-23204644 | No. 8 | 32 | 13 | 4.5 | 53 | £54.37 | In Stock |
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| OSG-23204664 | No. 10 | 24 | 16 | 5 | 58 | £54.37 | 1-2 days |
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| OSG-23204714 | 1/4 | 20 | 19 | 6.3 | 66 | £44.97 | In Stock |
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| OSG-23204744 | 5/16 | 18 | 22 | 8 | 72 | £52.21 | 1-2 days |
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| OSG-23204794 | 3/8 | 16 | 24 | 10 | 80 | £66.49 | In Stock |
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| OSG-23204894 | 1/2 | 13 | 29 | 9 | 89 | £93.67 | In Stock |
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Built around the way engineers work
Fast dispatch, clear delivery options and a friendly technical team on the end of the phone.
UK Delivery
FREE next day delivery on mainland UK orders over £50 ex VAT
| Service | Cost |
|---|---|
| Royal Mail Tracked 24 | £5.90 |
| DPD Standard Next Day | £8.00 |
| Royal Mail Special Delivery by 1pm | £12.50 |
| DPD Saturday Delivery | £25.00 |
Saturday delivery available on orders placed before 4pm Friday. T&Cs and geographical exclusions apply (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands & others) — see our delivery page for full details.
Easy Returns
If an item isn't right, sending it back is simple and hassle-free.
Read our returns policy →Need Technical Help?
Our specialist team can advise on tooling choice, specifications and compatibility.
01732 887334 info@protool-ltd.co.ukMon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30
