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OSG Threading Tap Metric A-Spiral Point - LH Powder Metal Left Hand -TiCN Coated - Through Holes DIN376 - M12 x 1.75
| Size | M12 |
| Pitch | 1.75 |
| Overall Length | 110 |
| Threading Length | 28 |
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Description
The OSG Metric A-Spiral Point LH Tap is a left-hand threading tool designed for through-hole assemblies. Built with a powder metal substrate and a TiCN coating, it delivers durable, reliable performance for precise left-handed threads at a through-hole DIN 376 size—M12 x 1.75.
- Thread Direction: Left-hand (LH) threading designed for specific reverse-thread applications in through-holes
- Material: Powder metal construction for enhanced toughness, wear resistance, and long tool life
- Coating: TiCN (Titanium Carbonitride) coating reduces friction and improves heat resistance to extend life
- Geometry: A-Spiral Point geometry efficiently pushes chips forward for clean, accurate threads
- Through-Hole Compatibility: Optimized for through-hole DIN 376 standards and precise tapping in cylindrical components
- Size: M12 x 1.75 pitch for standard left-hand thread applications
Designed to deliver dependable left-handed tapping in demanding materials, this tap minimizes chip packing and provides consistent thread quality. The combination of a robust powder metal core and TiCN coating helps withstand high-speed tapping, maintain sharp cutting edges, and reduce maintenance downtime. It's an ideal choice for technicians and engineers working on assemblies that require reliable LH threads in through-hole configurations, offering a clear advantage over generic taps when precision and tool life matter.
Part Numbers
- Protool Part Number
- OSG-48218179
- 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 Point - LH Powder Metal Left Hand -TiCN Coated - Through Holes
View full collection →You are viewing OSG-48218179. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48218138 | M3 | 0.5 | 56 | 3.5 | 3 | 371 | £43.52 | In Stock | |
| OSG-48218144 | M4 | 0.7 | 63 | 4.5 | 3 | 371 | £44.72 | In Stock | |
| OSG-48218149 | M5 | 0.8 | 70 | 6 | 3 | 371 | £45.95 | In Stock | |
| OSG-48218155 | M6 | 1 | 80 | 6 | 3 | 371 | £46.46 | In Stock | |
| OSG-48218161 | M8 | 1.25 | 90 | 8 | 3 | 371 | £55.76 | In Stock | |
| OSG-48218169 | M10 | 1.5 | 100 | 10 | 3 | 371 | £68.16 | In Stock | |
| OSG-48218179 Viewing | M12 | 1.75 | 110 | 9 | 3 | 376 | £85.59 | In Stock | |
| OSG-48218191 | M14 | 2 | 110 | 11 | 3 | 376 | £102.11 | In Stock | |
| OSG-48218202 | M16 | 2 | 110 | 12 | 3 | 376 | £119.94 | In Stock | |
| OSG-48218214 | M18 | 2.5 | 125 | 14 | 3 | 376 | £162.25 | In Stock | |
| OSG-48218228 | M20 | 2.5 | 140 | 16 | 3 | 376 | £192.24 | In Stock | |
| OSG-48218238 | M22 | 2.5 | 140 | 18 | 3 | 376 | £209.67 | In Stock | |
| OSG-48218247 | M24 | 3 | 160 | 18 | 3 | 376 | £257.60 | In Stock |
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