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OSG Threading Tap Metric A-Spiral Flute - Form E Powder Metal Right Hand -TiCN Coated - Blind Holes DIN371 - M2.5 x 0.45
| Size | M2.5 |
| Pitch | 0.45 |
| Overall Length | 50 |
| Threading Length | 3.6 |
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Description
The OSG Threading Tap is a metric A-Spiral Flute Form E tool designed for blind-hole threading in compact parts. Crafted from powder metal and TiCN-coated, this right-hand tap delivers strength, wear resistance, and an extended flute for deeper holes, ideal for small-diameter threads like M2.5 x 0.45 under DIN371.
- Material: Powder Metal construction provides robust strength and wear resistance for repeated use.
- Coating: TiCN coating increases surface hardness, reduces friction, and extends tool life during high-speed operations.
- Flute Design: A-Spiral flute with Form E offers an extended flute length for deeper blind-hole tapping and efficient chip evacuation.
- Thread Type and Size: Metric A-spiral, right-hand thread, DIN371, M2.5 x 0.45 for small-diameter applications.
- Application: Specifically designed for blind holes where access is limited, reducing the risk of tap breakage.
- Direction: Right-hand threading is standard for most metalworking applications.
With its powder-metal core and TiCN coating, this tap delivers consistent thread quality while resisting wear in demanding materials. The extended flute length of Form E provides reliable tapping at greater depths without frequent retractions, improving productivity in production environments. The spiral flute design actively evacuates chips, minimizing heat build-up and reducing the chance of breaking the tap during high-speed cutting. This makes it suitable for precision assemblies, electronics enclosures, automotive components, and other small-part applications where accurate internal threads are essential.
Part Numbers
- Protool Part Number
- OSG-48203133
- 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 - Form E Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48203133. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48203125 | M2 | 0.4 | 45 | 2.8 | 2 | 371 | £33.23 | 1-2 days | |
| OSG-48203127 | M2.2 | 0.45 | 45 | 2.8 | 2 | 371 | £33.12 | 1-2 days | |
| OSG-48203128 | M2.3 | 0.4 | 45 | 2.8 | 2 | 371 | £33.12 | 1-2 days | |
| OSG-48203133 Viewing | M2.5 | 0.45 | 50 | 2.8 | 2 | 371 | £33.01 | 1-2 days | |
| OSG-48203136 | M2.6 | 0.45 | 50 | 2.8 | 2 | 371 | £31.02 | 1-2 days | |
| OSG-48203138 | M3 | 0.5 | 56 | 3.5 | 3 | 371 | £31.52 | In Stock | |
| OSG-48203142 | M3.5 | 0.6 | 56 | 4 | 3 | 371 | £44.05 | 1-2 days | |
| OSG-48203144 | M4 | 0.7 | 63 | 4.5 | 3 | 371 | £32.48 | In Stock | |
| OSG-48203147 | M4.5 | 0.75 | 70 | 6 | 3 | 371 | £39.64 | 1-2 days | |
| OSG-48203149 | M5 | 0.8 | 70 | 6 | 3 | 371 | £33.15 | In Stock | |
| OSG-48203152 | M5.5 | 0.9 | 80 | 6 | 3 | 371 | £45.95 | 1-2 days | |
| OSG-48203155 | M6 | 1 | 80 | 6 | 3 | 371 | £33.47 | In Stock | |
| OSG-48203158 | M7 | 1 | 80 | 7 | 3 | 371 | £41.63 | 1-2 days | |
| OSG-48203161 | M8 | 1.25 | 90 | 8 | 3 | 371 | £40.15 | In Stock | |
| OSG-48203165 | M9 | 1.25 | 90 | 9 | 3 | 371 | £47.94 | 1-2 days | |
| OSG-48203169 | M10 | 1.5 | 100 | 10 | 3 | 371 | £48.92 | In Stock | |
| OSG-48203139 | M3 | 0.5 | 56 | 2.2 | 3 | 376 | £35.43 | 1-2 days | |
| OSG-48203185 | M4 | 0.7 | 63 | 2.8 | 3 | 376 | £34.79 | 1-2 days | |
| OSG-48203150 | M5 | 0.8 | 70 | 3.5 | 3 | 376 | £34.59 | 1-2 days | |
| OSG-48203187 | M6 | 1 | 80 | 4.5 | 3 | 376 | £34.90 | 1-2 days | |
| OSG-48203159 | M7 | 1 | 80 | 5.5 | 3 | 376 | £47.01 | 1-2 days | |
| OSG-48203188 | M8 | 1.25 | 90 | 6 | 3 | 376 | £39.74 | 1-2 days | |
| OSG-48203166 | M9 | 1.25 | 90 | 7 | 3 | 376 | £51.62 | 1-2 days | |
| OSG-48203189 | M10 | 1.5 | 100 | 7 | 3 | 376 | £45.74 | 1-2 days | |
| OSG-48203175 | M11 | 1.5 | 100 | 8 | 3 | 376 | £84.52 | 1-2 days | |
| OSG-48203179 | M12 | 1.75 | 110 | 9 | 3 | 376 | £61.43 | In Stock | |
| OSG-48203191 | M14 | 2 | 110 | 11 | 3 | 376 | £72.79 | In Stock | |
| OSG-48203202 | M16 | 2 | 110 | 12 | 3 | 376 | £85.55 | In Stock | |
| OSG-48203214 | M18 | 2.5 | 125 | 14 | 4 | 376 | £106.19 | 1-2 days | |
| OSG-48203228 | M20 | 2.5 | 140 | 16 | 4 | 376 | £125.54 | 1-2 days | |
| OSG-48203238 | M22 | 2.5 | 140 | 18 | 4 | 376 | £137.42 | 1-2 days | |
| OSG-48203247 | M24 | 3 | 160 | 18 | 4 | 376 | £168.75 | 1-2 days |
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