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OSG Threading Tap RC (BSPT) A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN5156 - 1/4 x 19
| Size | 1/4 |
| Pitch | 19 |
| Overall Length | 100 |
| Threading Length | 19 |
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Description
The OSG RC BSPT A-Spiral Flute threading tap is a precision tool designed for professionals who need reliable BSPT threads in blind-hole applications. Built from powder-metal and TiCN-coated, it delivers durable performance for demanding materials and tight tolerances.
- Thread type: BSPT (British Standard Pipe Taper), right-hand thread, 1/4" diameter with 19 threads per inch (1/4 x 19)
- Flute geometry: A-Spiral flute design that facilitates chip evacuation, ideal for blind-hole tapping and tight starts
- Material: Powder-metal body offering enhanced wear resistance and toughness for long tool life
- Coating: TiCN coating reduces friction and improves heat resistance for faster cutting and extended tool life
- Standards: DIN5156-compliant designation for BSPT thread accuracy and compatibility
- Applications: Optimized for blind-hole BSPT threading and through-hole work where reliable chip evacuation matters
The powder-metal construction delivers wear resistance and toughness that stand up to demanding materials and high-production environments. The TiCN coating lowers friction and improves heat resistance, enabling faster speeds and longer tool life. The A-Spiral flute actively pulls chips out of the hole, reducing binding and enhancing start-up performance in blind-hole scenarios. Together, these features support consistent BSPT thread quality and minimal downtime for hydraulic, pneumatic, and fluid-handling assemblies that require DIN5156 tolerances.
Part Numbers
- Protool Part Number
- OSG-48302394
- 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 RC (BSPT) A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48302394. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48302374 | 1/16 | 28 | 90 | 6 | 3 | 5156 | £129.09 | 1-2 days | |
| OSG-48302384 | 1/8 | 28 | 90 | 7 | 3 | 5156 | £103.26 | In Stock | |
| OSG-48302394 Viewing | 1/4 | 19 | 100 | 11 | 3 | 5156 | £124.26 | 1-2 days | |
| OSG-48302404 | 3/8 | 19 | 100 | 12 | 4 | 5156 | £170.44 | 1-2 days | |
| OSG-48302414 | 1/2 | 14 | 125 | 16 | 4 | 5156 | £212.79 | In Stock | |
| OSG-48302434 | 3/4 | 14 | 140 | 20 | 4 | 5156 | £337.09 | 1-2 days | |
| OSG-48302454 | 1 | 11 | 160 | 25 | 4 | 5156 | £478.46 | 1-2 days |
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