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OSG Threading Tap BSW A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - 1/8 x 40
| Size | 1/8 |
| Pitch | 40 |
| Overall Length | 56 |
| Threading Length | 7 |
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Description
The OSG Threading Tap BSW A-Spiral Flute is a precision tapping tool engineered for British Standard Whitworth threads in blind holes. Designed for machinists who demand clean, accurate threads in closed-end applications, it combines tough powder metal construction with a high-hardness TiCN coating to deliver dependable performance and longer tool life.
- Thread type: British Standard Whitworth (BSW), 1/8" diameter with 40 threads per inch (DIN2184-1 compliant)
- Flute design: A-Spiral flute for efficient chip evacuation in blind holes, reducing clogging and chatter
- Material: Powder metal substrate offering durability, wear resistance, and consistent performance
- Coating: TiCN (Titanium Carbonitride) coating to lower friction, increase hardness, and improve heat resistance
- Direction: Right-hand thread for standard threading operations and reliable engagement
- Size: 1/8" nominal diameter, 40 TPI (coordinated with DIN2184-1 specifications)
- Application: Optimized for tapping blind holes where through-holes aren’t available, promoting smooth chip removal and clean threads
- Precision advantages: Tight tolerances and hardened cutting edges support higher cutting speeds and longer tool life
With TiCN coating and a dedicated spiral flute geometry, this tap minimizes heat build-up and wear while delivering consistent thread quality across multiple holes. It’s an ideal choice for small-diameter BSW threads in steel, cast iron, and alloy workpieces where blind-hole tapping is required, helping you reduce rework, downtime, and tool changes while achieving reliable engagement and finishing.
Part Numbers
- Protool Part Number
- OSG-48139702
- 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-48139702. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48139702 Viewing | 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 | 1 | 8 | 160 | 18 | 4 | 2184-1 | £231.89 | In Stock |
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