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OSG Threading Tap - Metric Spiral Flute HSS-E - TIN Coated - Blind Hole - M12 x 1.75
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Description
Meet the OSG Metric Spiral Flute Threading Tap in M12 x 1.75—a high-performance tool designed for machinists who demand precise, durable threads in blind-hole applications. Built from HSS-E cobalt and finished with a Titanium Nitride (TIN) coating, this tap combines hardness, wear resistance, and reliable performance for demanding metalworking tasks.
- Size & Pitch: M12 x 1.75 — metric fine-pitch threading for accurate, standard-compatible screws and bolts
- Material: HSS-E cobalt alloy—enhanced toughness and heat resistance for tough tapping jobs
- Coating: Titanium Nitride (TIN) coating—reduces friction, extends tool life, and aids wear resistance
- Flute Design: Spiral flute optimized for efficient chip evacuation in blind holes, minimizing clogging and tapping torque
- Application: Specifically suited for blind-hole threading in metal components where access is limited
This tap delivers consistent thread quality and longer tool life thanks to the combination of cobalt-strengthened steel and a protective TiN coating. The spiral flute geometry ensures smooth chip removal, which is especially beneficial in confined blind-hole environments. Ideal for production and repair work alike, it helps maintain precision in critical assemblies and reduces downtime due to worn or mis-tapped holes.
Part Numbers
- Protool Part Number
- OSG-22201797
- 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 Spiral Flute HSS-E - TIN Coated - Blind Hole
View full collection →You are viewing OSG-22201797. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22201387 | M3 | 0.5 | 11 | 3.15 | 48 | £31.27 | In Stock | |
| OSG-22201447 | M4 | 0.7 | 13 | 4 | 53 | £29.55 | In Stock | |
| OSG-22201497 | M5 | 0.8 | 13 | 4.5 | 53 | £30.85 | In Stock | |
| OSG-22201557 | M6 | 1 | 16 | 5 | 58 | £31.27 | In Stock | |
| OSG-22201617 | M8 | 1.25 | 19 | 6.3 | 66 | £34.32 | In Stock | |
| OSG-22201697 | M10 | 1.5 | 24 | 10 | 80 | £41.70 | In Stock | |
| OSG-22201797 Viewing | M12 | 1.75 | 29 | 9 | 89 | £56.47 | In Stock |
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