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OSG Threading Tap BSW A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - 1 x 8
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Description
The OSG Threading Tap BSW A-Spiral Flute is a precise right-hand tap engineered to cut British Standard Whitworth threads in blind holes. Designed for machinists and restoration projects, it delivers clean, accurate threads in recessed or closed-end cavities.
- Thread Type: British Standard Whitworth (BSW) threads for compatibility with classic UK hardware and components.
- A-Spiral Flute: Spiral flute geometry enhances chip evacuation in blind holes, reducing binding and improving cutting stability.
- Material: Powder metal construction for exceptional hardness, wear resistance, and long tool life in demanding work.
- Coating: TiCN (Titanium Carbonitride) coating lowers friction and increases surface hardness for higher cutting speeds and extended tool life.
- Working Direction: Right-hand configuration designed for standard clockwise threading.
- Hole Type: Optimized for blind holes where chips must be efficiently removed without through-holes.
- DIN Standard: DIN2184-1 geometry ensures precise thread form and compatibility with standard Whitworth fittings.
- Size: 1 x 8, as listed in the product title, indicating the tap’s specified dimensions for this application.
The combination of a powder metal body, TiCN coating, and an A-spiral flute delivers reliable performance when tapping into limited-access holes. Expect smoother cuts, reduced risk of tap breakage, and consistently clean Whitworth threads that fit standard nuts and bolts. This tap is well-suited for vintage machinery restoration, automotive components, and any project requiring accurate BSW threads in blind cavities.
Part Numbers
- Protool Part Number
- OSG-48139715
- 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 BSW A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48139715. 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 | 7/8 | 9 | 140 | 18 | 4 | 2184-1 | £165.05 | In Stock | |
| OSG-48139715 Viewing | 1 | 8 | 160 | 18 | 4 | 2184-1 | £231.89 | In Stock |
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