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OSG Threading Tap BSW A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - 7/8 x 9
| Size | 7/8 |
| Pitch | 9 |
| Overall Length | 140 |
| Threading Length | 32 |
| Shank Diameter | 18 |
| Square | 14.5 |
Learn more about Klarna
The OSG Threading Tap BSW A-Spiral Flute is a right-hand tapping tool engineered to cut British Standard Whitworth threads in blind holes. Built from high-performance powder metal and TiCN-coated for durability, it delivers precise, clean threads even where access is limited.
- Size and Thread: 7/8 x 9 BSW (DIN2184-1) for dedicated blind-hole applications
- Flute Design: A-Spiral flute promotes efficient chip evacuation in blind holes
- Material: Powder metal construction for toughness and wear resistance
- Coating: TiCN coating reduces friction and increases hardness for longer tool life
- Orientation: Right-hand threading for standard internal threading operations
- Application: Specifically designed for blind holes where through-holes are not possible
With TiCN-coated powder-metal performance, this tap offers longer service intervals and consistent thread quality across production runs. The A-Spiral flute minimizes chip buildup, lowering the risk of tap breakage and providing smoother cutting in deep or restricted cavities. Reduced friction allows higher cutting speeds and cooler operation, helping you achieve clean, accurate BSW threads in steel, cast iron, or other compatible metals. This makes it ideal for maintenance, repair, or manufacturing environments where reliable blind-hole threading is required.
| Size | 7/8 |
| Pitch | 9 |
| Overall Length | 140 |
| Threading Length | 32 |
| Shank Diameter | 18 |
| Square | 14.5 |
| Flutes | 4 |
| DIN | 2184-1 |
| Thread Direction | Right Hand |
| Substrate | Powder Metal |
| Coating | TiCN |
| Style | Spiral Flute |
| Form | BSW |
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 BSW A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48139714. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48139702 | 1/8 | 40 | 56 | 3.5 | 2 | 2184-1 | £35.93 | In Stock | |
| OSG-48139704 | 3/16 | 24 | 70 | 6 | 2 | 2184-1 | £37.53 | In Stock | |
| OSG-48139706 | 1/4 | 20 | 80 | 7 | 2 | 2184-1 | £38.33 | In Stock | |
| OSG-48139707 | 5/16 | 18 | 90 | 8 | 3 | 2184-1 | £44.46 | In Stock | |
| OSG-48139708 | 3/8 | 16 | 100 | 10 | 3 | 2184-1 | £52.70 | In Stock | |
| OSG-48139709 | 7/16 | 14 | 100 | 8 | 3 | 2184-1 | £57.10 | In Stock | |
| OSG-48139710 | 1/2 | 12 | 110 | 9 | 3 | 2184-1 | £71.73 | In Stock | |
| OSG-48139712 | 5/8 | 11 | 110 | 12 | 3 | 2184-1 | £93.61 | In Stock | |
| OSG-48139713 | 3/4 | 10 | 125 | 14 | 4 | 2184-1 | £131.65 | In Stock | |
| OSG-48139714 Viewing | 7/8 | 9 | 140 | 18 | 4 | 2184-1 | £165.05 | In Stock | |
| OSG-48139715 | 1 | 8 | 160 | 18 | 4 | 2184-1 | £231.89 | In Stock |
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