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OSG Carbide 3 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications - 8mm x R2.5
| Cutter Diameter | 8 |
| Number of Flutes | 3 |
| Flute Length | 21 |
| Overall Length | 64 |
Learn more about Klarna
Description
The OSG Carbide 3 Flute End Mill with Corner Radius is a versatile, general‑purpose cutting tool designed for center cutting operations. Sized at 8 mm in diameter with a 2.5 mm corner radius, it excels at milling, slotting, and profiling across a range of materials. The TiAlN coating enhances wear resistance and heat tolerance, while its regular-length design and center-cut geometry deliver consistent performance in everyday machining tasks.
- Corner Radius for Smoother Finishes: The 2.5 mm corner radius helps damp chatter and produces smoother, more consistent cuts, reducing finishing passes and improving surface quality on profiles and pockets.
- TiAlN Coating for Longer Tool Life: The TiAlN coating adds wear resistance and heat tolerance, helping the edge stay sharp longer in demanding materials and reducing tool changes over time.
- Three-Flute Design for Efficient Material Removal: The 3-flute geometry balances aggressive material removal with cutting stability, delivering steady feeds and reduced vibration for reliable milling, slotting, and profiling.
This end mill supports faster cycle times, consistent results, and a smoother workflow across industries—from precision detailing to heavier profiling tasks. By combining a durable carbide form, protective coating, and a geometry tuned for general applications, it helps you achieve precise tolerances, better surface finishes, and fewer interruptions due to tool wear.
Part Numbers
- Protool Part Number
- OSG-403-3150R25
- Brand
- OSG
- Category
- End Mill
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 Carbide 3 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-403-3150R25. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Corner Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-403-1575R02 | 4 | 3 | 14 | 51 | 4 | 0.2 | £29.69 | In Stock | |
| OSG-403-1575R025 | 4 | 3 | 14 | 51 | 4 | 0.25 | £29.69 | In Stock | |
| OSG-403-1575R04 | 4 | 3 | 14 | 51 | 4 | 0.4 | £29.69 | In Stock | |
| OSG-403-1575R05 | 4 | 3 | 14 | 51 | 4 | 0.5 | £29.69 | In Stock | |
| OSG-403-1575R075 | 4 | 3 | 14 | 51 | 4 | 0.75 | £29.69 | In Stock | |
| OSG-403-1575R10 | 4 | 3 | 14 | 51 | 4 | 1 | £29.69 | In Stock | |
| OSG-403-1575R15 | 4 | 3 | 14 | 51 | 4 | 1.5 | £29.69 | In Stock | |
| OSG-403-1968R025 | 5 | 3 | 16 | 51 | 5 | 0.25 | £32.18 | In Stock | |
| OSG-403-1968R05 | 5 | 3 | 16 | 51 | 5 | 0.5 | £32.18 | In Stock | |
| OSG-403-1968R075 | 5 | 3 | 16 | 51 | 5 | 0.75 | £32.18 | In Stock | |
| OSG-403-1968R10 | 5 | 3 | 16 | 51 | 5 | 1 | £32.18 | In Stock | |
| OSG-403-1968R125 | 5 | 3 | 16 | 51 | 5 | 1.25 | £32.18 | In Stock | |
| OSG-403-1968R15 | 5 | 3 | 16 | 51 | 5 | 1.5 | £32.18 | In Stock | |
| OSG-403-1968R20 | 5 | 3 | 16 | 51 | 5 | 2 | £32.18 | In Stock | |
| OSG-403-2362R02 | 6 | 3 | 19 | 64 | 6 | 0.2 | £40.18 | In Stock | |
| OSG-403-2362R025 | 6 | 3 | 19 | 64 | 6 | 0.25 | £40.18 | In Stock | |
| OSG-403-2362R05 | 6 | 3 | 19 | 64 | 6 | 0.5 | £40.18 | In Stock | |
| OSG-403-2362R075 | 6 | 3 | 19 | 64 | 6 | 0.75 | £40.18 | In Stock | |
| OSG-403-2362R08 | 6 | 3 | 19 | 64 | 6 | 0.8 | £40.18 | In Stock | |
| OSG-403-2362R10 | 6 | 3 | 19 | 64 | 6 | 1 | £40.18 | In Stock | |
| OSG-403-2362R125 | 6 | 3 | 19 | 64 | 6 | 1.25 | £40.18 | In Stock | |
| OSG-403-2362R15 | 6 | 3 | 19 | 64 | 6 | 1.5 | £40.18 | In Stock | |
| OSG-403-2362R20 | 6 | 3 | 19 | 64 | 6 | 2 | £40.18 | In Stock | |
| OSG-403-3150R02 | 8 | 3 | 21 | 64 | 8 | 0.2 | £47.59 | In Stock | |
| OSG-403-3150R025 | 8 | 3 | 21 | 64 | 8 | 0.25 | £47.59 | In Stock | |
| OSG-403-3150R03 | 8 | 3 | 21 | 64 | 8 | 0.3 | £47.59 | In Stock | |
| OSG-403-3150R05 | 8 | 3 | 21 | 64 | 8 | 0.5 | £47.59 | In Stock | |
| OSG-403-3150R075 | 8 | 3 | 21 | 64 | 8 | 0.75 | £47.59 | In Stock | |
| OSG-403-3150R08 | 8 | 3 | 21 | 64 | 8 | 0.8 | £47.59 | In Stock | |
| OSG-403-3150R10 | 8 | 3 | 21 | 64 | 8 | 1 | £47.59 | In Stock | |
| OSG-403-3150R125 | 8 | 3 | 21 | 64 | 8 | 1.25 | £47.59 | In Stock | |
| OSG-403-3150R15 | 8 | 3 | 21 | 64 | 8 | 1.5 | £47.59 | In Stock | |
| OSG-403-3150R20 | 8 | 3 | 21 | 64 | 8 | 2 | £47.59 | In Stock | |
| OSG-403-3150R25 Viewing | 8 | 3 | 21 | 64 | 8 | 2.5 | £47.59 | In Stock | |
| OSG-403-3150R30 | 8 | 3 | 21 | 64 | 8 | 3 | £47.59 | In Stock | |
| OSG-403-3937R02 | 10 | 3 | 25 | 70 | 10 | 0.2 | £60.14 | In Stock | |
| OSG-403-3937R025 | 10 | 3 | 25 | 70 | 10 | 0.25 | £60.14 | In Stock | |
| OSG-403-3937R04 | 10 | 3 | 25 | 70 | 10 | 0.4 | £60.14 | In Stock | |
| OSG-403-3937R05 | 10 | 3 | 25 | 70 | 10 | 0.5 | £60.14 | In Stock | |
| OSG-403-3937R08 | 10 | 3 | 25 | 70 | 10 | 0.8 | £60.14 | In Stock | |
| OSG-403-3937R10 | 10 | 3 | 25 | 70 | 10 | 1 | £60.14 | In Stock | |
| OSG-403-3937R125 | 10 | 3 | 25 | 70 | 10 | 1.25 | £60.14 | In Stock | |
| OSG-403-3937R15 | 10 | 3 | 25 | 70 | 10 | 1.5 | £60.14 | In Stock | |
| OSG-403-3937R20 | 10 | 3 | 25 | 70 | 10 | 2 | £60.14 | In Stock | |
| OSG-403-3937R25 | 10 | 3 | 25 | 70 | 10 | 2.5 | £60.14 | In Stock | |
| OSG-403-3937R30 | 10 | 3 | 25 | 70 | 10 | 3 | £60.14 | In Stock | |
| OSG-403-3937R32 | 10 | 3 | 25 | 70 | 10 | 3.2 | £60.14 | In Stock | |
| OSG-403-3937R40 | 10 | 3 | 25 | 70 | 10 | 4 | £60.14 | In Stock | |
| OSG-403-4724R02 | 12 | 3 | 25 | 76 | 12 | 0.2 | £93.46 | In Stock | |
| OSG-403-4724R025 | 12 | 3 | 25 | 76 | 12 | 0.25 | £93.46 | In Stock | |
| OSG-403-4724R03 | 12 | 3 | 25 | 76 | 12 | 0.3 | £93.46 | In Stock | |
| OSG-403-4724R05 | 12 | 3 | 25 | 76 | 12 | 0.5 | £93.46 | In Stock | |
| OSG-403-4724R075 | 12 | 3 | 25 | 76 | 12 | 0.75 | £93.46 | In Stock | |
| OSG-403-4724R08 | 12 | 3 | 25 | 76 | 12 | 0.8 | £93.46 | In Stock | |
| OSG-403-4724R10 | 12 | 3 | 25 | 76 | 12 | 1 | £93.46 | In Stock | |
| OSG-403-4724R15 | 12 | 3 | 25 | 76 | 12 | 1.5 | £93.46 | In Stock | |
| OSG-403-4724R20 | 12 | 3 | 25 | 76 | 12 | 2 | £93.46 | In Stock | |
| OSG-403-4724R25 | 12 | 3 | 25 | 76 | 12 | 2.5 | £93.46 | In Stock | |
| OSG-403-4724R30 | 12 | 3 | 25 | 76 | 12 | 3 | £93.46 | In Stock | |
| OSG-403-4724R32 | 12 | 3 | 25 | 76 | 12 | 3.2 | £93.46 | In Stock | |
| OSG-403-4724R40 | 12 | 3 | 25 | 76 | 12 | 4 | £93.46 | In Stock | |
| OSG-403-6299R05 | 16 | 3 | 32 | 89 | 16 | 0.5 | £169.21 | In Stock | |
| OSG-403-6299R10 | 16 | 3 | 32 | 89 | 16 | 1 | £169.21 | In Stock | |
| OSG-403-6299R15 | 16 | 3 | 32 | 89 | 16 | 1.5 | £169.21 | In Stock | |
| OSG-403-6299R20 | 16 | 3 | 32 | 89 | 16 | 2 | £169.21 | In Stock | |
| OSG-403-6299R25 | 16 | 3 | 32 | 89 | 16 | 2.5 | £169.21 | In Stock | |
| OSG-403-6299R30 | 16 | 3 | 32 | 89 | 16 | 3 | £169.21 | In Stock | |
| OSG-403-6299R40 | 16 | 3 | 32 | 89 | 16 | 4 | £169.21 | In Stock | |
| OSG-403-6299R50 | 16 | 3 | 32 | 89 | 16 | 5 | £169.21 | In Stock | |
| OSG-403-7874R05 | 20 | 3 | 38 | 102 | 20 | 0.5 | £214.77 | In Stock | |
| OSG-403-7874R10 | 20 | 3 | 38 | 102 | 20 | 1 | £214.77 | In Stock | |
| OSG-403-7874R20 | 20 | 3 | 38 | 102 | 20 | 2 | £214.77 | In Stock | |
| OSG-403-7874R30 | 20 | 3 | 38 | 102 | 20 | 3 | £214.77 | In Stock | |
| OSG-403-7874R50 | 20 | 3 | 38 | 102 | 20 | 5 | £214.77 | In Stock |
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