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OSG Threading Tap Metric A- Spiral Flute - LH Powder Metal Left Hand - TiCN Coated - Blind Holes DIN371 - M4 x 0.7
| Size | M4 |
| Pitch | 0.7 |
| Overall Length | 63 |
| Threading Length | 5.6 |
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Description
The OSG Metric A‑Spiral Flute Threading Tap is a left‑hand, powder metal tool engineered for precise threading in blind holes with a metric M4 x 0.7 size. Built for machinists who require durable performance and reliable results, it combines advanced coating and efficient chip evacuation to deliver consistent cuts in challenging materials.
- Left‑hand spiral flute design: enables smooth chip flow and reduces clogging when threading in blind holes, improving control and finish.
- Powder metal substrate: offers enhanced toughness and wear resistance for longer tool life under demanding tapping conditions.
- TiCN coating: multilayer TiCN coating increases hardness and wear resistance, helping maintain cutting performance over time.
- DIN 371 compatibility: engineered to DIN371 standards for reliable fit and consistent thread quality across compatible applications.
- Size and threading: M4 x 0.7 metric thread, specifically configured for blind-hole applications to ensure accurate, clean threads.
- Application focus: designed to perform in a range of common materials where blind-hole threading is required, with efficient chip evacuation and steady cutting action.
With its combination of a left‑hand spiral flute, durable powder metal body, and protective TiCN coating, this tapping solution delivers dependable tooling life and predictable results for blind-hole projects. It’s a precise, purpose‑built choice for technicians who value consistent thread quality, reduced downtime, and efficient manufacturing workflows.
Part Numbers
- Protool Part Number
- OSG-48217144
- 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 - LH Powder Metal Left Hand - TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48217144. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48217138 | M3 | 0.5 | 56 | 3.5 | 3 | 371 | £44.98 | In Stock | |
| OSG-48217144 Viewing | M4 | 0.7 | 63 | 4.5 | 3 | 371 | £46.05 | In Stock | |
| OSG-48217149 | M5 | 0.8 | 70 | 6 | 3 | 371 | £29.61 | In Stock | |
| OSG-48217155 | M5 | 1 | 80 | 6 | 3 | 371 | £47.90 | In Stock | |
| OSG-48217161 | M8 | 1.25 | 90 | 8 | 3 | 371 | £57.50 | In Stock | |
| OSG-48217169 | M10 | 1.5 | 100 | 10 | 3 | 371 | £70.14 | In Stock | |
| OSG-48217179 | M12 | 1.75 | 110 | 9 | 3 | 376 | £88.37 | In Stock | |
| OSG-48217191 | M14 | 2 | 110 | 11 | 3 | 376 | £105.29 | In Stock | |
| OSG-48217202 | M16 | 2 | 110 | 12 | 3 | 376 | £123.78 | In Stock | |
| OSG-48217214 | M18 | 2.5 | 125 | 14 | 4 | 376 | £167.22 | In Stock | |
| OSG-48217228 | M20 | 2.5 | 140 | 16 | 4 | 376 | £198.09 | In Stock | |
| OSG-48217238 | M22 | 2.5 | 140 | 18 | 4 | 376 | £216.31 | In Stock | |
| OSG-48217247 | M24 | 3 | 160 | 18 | 4 | 376 | £265.59 | In Stock |
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