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OSG Threading Tap Metric A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN376 - M8 x 1.25
| Size | M8 |
| Pitch | 1.25 |
| Overall Length | 90 |
| Threading Length | 10 |
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Description
The OSG Threading Tap Metric A-Spiral Flute is a high-performance tool designed for precise threading of blind holes in metallic workpieces. It’s built for professional machinists and production environments that demand consistent, reliable threads.
- Size / Thread: M8 x 1.25 metric thread for standard blind-hole applications
- Material: Powder-metal substrate for strength, wear resistance, and long tool life
- Coating: TiCN coating to increase hardness and reduce friction during cutting
- Flute Design: A-Spiral flute enhances chip evacuation in deep or blind holes
- Direction: Right-hand threading for common CNC and manual tapping setups
- Standard: DIN 376 compliance for consistent form and fit in industrial tooling
With its TiCN-coated, powder-metal core and A-Spiral flute geometry, this tap delivers consistent, clean threads in blind holes across a range of materials. The flute design actively directs chips out of the hole, reducing binding and torque, which helps prevent tool breakage and improves finish quality. The hard TiCN coating enhances wear resistance, extending tool life in high-speed production and repetitive tapping tasks. Ideal for manual or CNC tapping in metal parts where reliable blind-hole threads are required, this tap is well-suited for general engineering, automotive components, and precision machinery applications.
Part Numbers
- Protool Part Number
- OSG-48139188
- 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 Metric A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48139188. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48139111 | M1 | 0.25 | 40 | 2.5 | 2 | 371 | £54.83 | In Stock | |
| OSG-48139112 | M1.1 | 0.25 | 40 | 2.5 | 2 | 371 | £56.48 | 1-2 days | |
| OSG-48139113 | M1.2 | 0.25 | 40 | 2.5 | 2 | 371 | £56.48 | In Stock | |
| OSG-48139115 | M1.4 | 0.3 | 40 | 2.5 | 2 | 371 | £49.09 | In Stock | |
| OSG-48139118 | M1.6 | 0.35 | 40 | 2.5 | 2 | 371 | £49.09 | In Stock | |
| OSG-48139119 | M1.7 | 0.35 | 40 | 2.5 | 2 | 371 | £45.95 | In Stock | |
| OSG-48139120 | M1.8 | 0.35 | 40 | 2.5 | 2 | 371 | £45.95 | In Stock | |
| OSG-48139125 | M2 | 0.4 | 45 | 2.8 | 2 | 371 | £40.73 | In Stock | |
| OSG-48139127 | M2.2 | 0.45 | 45 | 2.8 | 2 | 371 | £39.99 | In Stock | |
| OSG-48139128 | M2.3 | 0.4 | 45 | 2.8 | 2 | 371 | £39.99 | In Stock | |
| OSG-48139133 | M2.5 | 0.45 | 50 | 2.8 | 2 | 371 | £40.39 | In Stock | |
| OSG-48139136 | M2.6 | 0.45 | 50 | 2.8 | 2 | 371 | £37.43 | In Stock | |
| OSG-48139138 | M3 | 0.5 | 56 | 3.5 | 3 | 371 | £35.46 | In Stock | |
| OSG-48139142 | M3.5 | 0.6 | 56 | 4 | 3 | 371 | £41.18 | In Stock | |
| OSG-48139144 | M4 | 0.7 | 63 | 4.5 | 3 | 371 | £36.54 | In Stock | |
| OSG-48139147 | M4.5 | 0.75 | 70 | 6 | 3 | 371 | £42.66 | In Stock | |
| OSG-48139149 | M5 | 0.8 | 70 | 6 | 3 | 371 | £37.30 | In Stock | |
| OSG-48139152 | M5.5 | 0.9 | 80 | 6 | 3 | 371 | £56.59 | In Stock | |
| OSG-48139155 | M6 | 1 | 80 | 6 | 3 | 371 | £37.66 | In Stock | |
| OSG-48139158 | M7 | 1 | 80 | 7 | 3 | 371 | £55.71 | In Stock | |
| OSG-48139161 | M8 | 1.25 | 90 | 8 | 3 | 371 | £45.17 | In Stock | |
| OSG-48139165 | M9 | 1.25 | 90 | 9 | 3 | 371 | £43.87 | In Stock | |
| OSG-48139169 | M10 | 1.5 | 100 | 10 | 3 | 371 | £55.03 | In Stock | |
| OSG-48139139 | M3 | 0.5 | 56 | 2.2 | 3 | 376 | £58.11 | In Stock | |
| OSG-48139185 | M4 | 0.7 | 63 | 2.8 | 3 | 376 | £52.56 | In Stock | |
| OSG-48139150 | M5 | 0.8 | 70 | 3.5 | 3 | 376 | £57.94 | In Stock | |
| OSG-48139187 | M6 | 1 | 80 | 4.5 | 3 | 376 | £62.58 | In Stock | |
| OSG-48139159 | M7 | 1 | 80 | 5.5 | 3 | 376 | £68.43 | In Stock | |
| OSG-48139188 Viewing | M8 | 1.25 | 90 | 6 | 3 | 376 | £68.43 | In Stock | |
| OSG-48139166 | M9 | 1.25 | 90 | 7 | 3 | 376 | £55.39 | In Stock | |
| OSG-48139189 | M10 | 1.5 | 100 | 7 | 3 | 376 | £60.02 | In Stock | |
| OSG-48139175 | M11 | 1.5 | 100 | 8 | 3 | 376 | £61.23 | In Stock | |
| OSG-48139179 | M12 | 1.75 | 110 | 9 | 3 | 376 | £69.11 | In Stock | |
| OSG-48139191 | M14 | 2 | 110 | 11 | 3 | 376 | £81.89 | In Stock | |
| OSG-48139202 | M16 | 2 | 110 | 12 | 3 | 376 | £96.24 | In Stock | |
| OSG-48139214 | M18 | 2.5 | 125 | 14 | 4 | 376 | £130.46 | In Stock | |
| OSG-48139228 | M20 | 2.5 | 140 | 16 | 4 | 376 | £154.25 | In Stock | |
| OSG-48139238 | M22 | 2.5 | 140 | 18 | 4 | 376 | £168.73 | In Stock | |
| OSG-48139247 | M24 | 3 | 160 | 18 | 4 | 376 | £207.16 | In Stock |
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