Please log in here to access all benefits, including promotional discounts and faster checkouts.


OSG Threading Tap Metric A-Spiral Point - HB Weldon Powder Metal Right Hand -TiCN Coated - Through Holes DIN371/1835 - M3 x 0.5
| Size | M3 |
| Pitch | 0.5 |
| Overall Length | 56 |
| Threading Length | 11 |
Learn more about Klarna
Description
The OSG Threading Tap is a premium metric A-Spiral Point tool designed for precise, reliable threading in through-hole work. Built with a powder metal body, TiCN coating, and a welded HB shank, it delivers durable performance and secure tool retention for demanding tasks.
- Size and standard: M3 x 0.5 tapping for through-holes, aligned with DIN371/1835 specifications
- Material: Powder metal substrate for enhanced wear and heat resistance
- Coating: TiCN coating to reduce friction, extend tool life, and aid chip removal
- Geometry: A-Spiral Point design that efficiently drives chips forward for clean, precise threads
- Shank: HB Weldon shank for superior retention and stability in collets
- Direction: Right-hand threading suitable for a wide range of materials and applications
This tap is ideal for machinists and shop programs that require consistent thread quality in through-hole components. The TiCN-coated, powder metal construction stands up to demanding cutting conditions, while the spiral point geometry minimizes chip recutting and improves cycle times. The HB Weldon shank provides dependable grip under high-feed or high-torque situations, helping maintain accuracy across multiple holes and operations. For best results, pair with appropriate cutting fluid and controlled pecking cycles to maximize tool life and thread finish in aluminum, steel, and other common metals.
Part Numbers
- Protool Part Number
- OSG-48221138
- 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 - HB Weldon Powder Metal Right Hand -TiCN Coated - Through Holes
View full collection →You are viewing OSG-48221138. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48221138 Viewing | M3 | 0.5 | 56 | 6 | 3 | 371/1835 | £36.68 | In Stock | |
| OSG-48221144 | M4 | 0.7 | 63 | 6 | 3 | 371/1835 | £37.60 | In Stock | |
| OSG-48221149 | M5 | 0.8 | 70 | 6 | 3 | 371/1835 | £38.61 | In Stock | |
| OSG-48221155 | M6 | 1 | 80 | 6 | 3 | 371/1835 | £39.07 | In Stock | |
| OSG-48221161 | M8 | 1.25 | 90 | 8 | 3 | 371/1835 | £46.87 | In Stock | |
| OSG-48221169 | M10 | 1.5 | 100 | 10 | 3 | 371/1835 | £57.35 | In Stock | |
| OSG-48221179 | M12 | 1.75 | 110 | 12 | 3 | 371/1835 | £72.16 | In Stock | |
| OSG-48221191 | M14 | 2 | 110 | 14 | 3 | 371/1835 | £85.97 | In Stock | |
| OSG-48221202 | M16 | 2 | 110 | 16 | 3 | 371/1835 | £101.06 | In Stock |
No products match your filters.