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OSG Carbide 3 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications - 12mm x R4
| Cutter Diameter | 12 |
| Number of Flutes | 3 |
| Flute Length | 25 |
| Overall Length | 76 |
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Description
The OSG Carbide 3 Flute End Mill with Corner Radius is a versatile cutting tool built for general machining tasks. Featuring a 12 mm diameter and a 4 mm corner radius, this regular-length, center-cutting end mill handles milling, slotting, and profiling with steady, reliable performance, while the TiAlN coating boosts wear resistance for tougher jobs.
- Three-Flute Geometry for Efficient Material Removal: The 3-flute design provides a balanced combination of chip evacuation and rigidity, enabling fast, clean cuts in milling, slotting, and profiling tasks.
- TiAlN Coating for Extended Tool Life: The TiAlN coating enhances hardness and heat resistance, helping the tool resist wear during demanding operations and maintain edge life over many uses.
- Corner Radius R4 for Smoother Cuts: The 4 mm corner radius reduces edge wear, minimizes chatter, and delivers smoother finishes on curved profiles and near corners.
With this end mill, you gain reliable, repeatable performance across everyday machining tasks. The combination of carbide hardness, TiAlN coating, and corner-radius geometry helps reduce deflection, improve surface finish, and extend tool life, enabling longer runs between changes and less downtime in busy shops. Whether you’re an engineer, fabricator, or hobbyist, this tool is a dependable choice for general machining applications.
Part Numbers
- Protool Part Number
- OSG-403-4724R40
- 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-403-4724R40. 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 | £33.40 | In Stock | |
| OSG-403-1575R025 | 4 | 3 | 14 | 51 | 4 | 0.25 | £33.40 | In Stock | |
| OSG-403-1575R04 | 4 | 3 | 14 | 51 | 4 | 0.4 | £33.40 | In Stock | |
| OSG-403-1575R05 | 4 | 3 | 14 | 51 | 4 | 0.5 | £33.40 | In Stock | |
| OSG-403-1575R075 | 4 | 3 | 14 | 51 | 4 | 0.75 | £33.40 | In Stock | |
| OSG-403-1575R10 | 4 | 3 | 14 | 51 | 4 | 1 | £33.40 | In Stock | |
| OSG-403-1575R15 | 4 | 3 | 14 | 51 | 4 | 1.5 | £33.40 | In Stock | |
| OSG-403-1968R025 | 5 | 3 | 16 | 51 | 5 | 0.25 | £36.20 | In Stock | |
| OSG-403-1968R05 | 5 | 3 | 16 | 51 | 5 | 0.5 | £36.20 | In Stock | |
| OSG-403-1968R075 | 5 | 3 | 16 | 51 | 5 | 0.75 | £36.20 | In Stock | |
| OSG-403-1968R10 | 5 | 3 | 16 | 51 | 5 | 1 | £36.20 | In Stock | |
| OSG-403-1968R125 | 5 | 3 | 16 | 51 | 5 | 1.25 | £36.20 | In Stock | |
| OSG-403-1968R15 | 5 | 3 | 16 | 51 | 5 | 1.5 | £36.20 | In Stock | |
| OSG-403-1968R20 | 5 | 3 | 16 | 51 | 5 | 2 | £36.20 | In Stock | |
| OSG-403-2362R02 | 6 | 3 | 19 | 64 | 6 | 0.2 | £45.20 | In Stock | |
| OSG-403-2362R025 | 6 | 3 | 19 | 64 | 6 | 0.25 | £45.20 | In Stock | |
| OSG-403-2362R05 | 6 | 3 | 19 | 64 | 6 | 0.5 | £45.20 | In Stock | |
| OSG-403-2362R075 | 6 | 3 | 19 | 64 | 6 | 0.75 | £45.20 | In Stock | |
| OSG-403-2362R08 | 6 | 3 | 19 | 64 | 6 | 0.8 | £45.20 | In Stock | |
| OSG-403-2362R10 | 6 | 3 | 19 | 64 | 6 | 1 | £45.20 | In Stock | |
| OSG-403-2362R125 | 6 | 3 | 19 | 64 | 6 | 1.25 | £45.20 | In Stock | |
| OSG-403-2362R15 | 6 | 3 | 19 | 64 | 6 | 1.5 | £45.20 | In Stock | |
| OSG-403-2362R20 | 6 | 3 | 19 | 64 | 6 | 2 | £45.20 | In Stock | |
| OSG-403-3150R02 | 8 | 3 | 21 | 64 | 8 | 0.2 | £53.54 | In Stock | |
| OSG-403-3150R025 | 8 | 3 | 21 | 64 | 8 | 0.25 | £53.54 | In Stock | |
| OSG-403-3150R03 | 8 | 3 | 21 | 64 | 8 | 0.3 | £53.54 | In Stock | |
| OSG-403-3150R05 | 8 | 3 | 21 | 64 | 8 | 0.5 | £53.54 | In Stock | |
| OSG-403-3150R075 | 8 | 3 | 21 | 64 | 8 | 0.75 | £53.54 | In Stock | |
| OSG-403-3150R08 | 8 | 3 | 21 | 64 | 8 | 0.8 | £53.54 | In Stock | |
| OSG-403-3150R10 | 8 | 3 | 21 | 64 | 8 | 1 | £53.54 | In Stock | |
| OSG-403-3150R125 | 8 | 3 | 21 | 64 | 8 | 1.25 | £53.54 | In Stock | |
| OSG-403-3150R15 | 8 | 3 | 21 | 64 | 8 | 1.5 | £53.54 | In Stock | |
| OSG-403-3150R20 | 8 | 3 | 21 | 64 | 8 | 2 | £53.54 | In Stock | |
| OSG-403-3150R25 | 8 | 3 | 21 | 64 | 8 | 2.5 | £53.54 | In Stock | |
| OSG-403-3150R30 | 8 | 3 | 21 | 64 | 8 | 3 | £53.54 | In Stock | |
| OSG-403-3937R02 | 10 | 3 | 25 | 70 | 10 | 0.2 | £67.66 | In Stock | |
| OSG-403-3937R025 | 10 | 3 | 25 | 70 | 10 | 0.25 | £67.66 | In Stock | |
| OSG-403-3937R04 | 10 | 3 | 25 | 70 | 10 | 0.4 | £67.66 | In Stock | |
| OSG-403-3937R05 | 10 | 3 | 25 | 70 | 10 | 0.5 | £67.66 | In Stock | |
| OSG-403-3937R08 | 10 | 3 | 25 | 70 | 10 | 0.8 | £67.66 | In Stock | |
| OSG-403-3937R10 | 10 | 3 | 25 | 70 | 10 | 1 | £67.66 | In Stock | |
| OSG-403-3937R125 | 10 | 3 | 25 | 70 | 10 | 1.25 | £67.66 | In Stock | |
| OSG-403-3937R15 | 10 | 3 | 25 | 70 | 10 | 1.5 | £67.66 | In Stock | |
| OSG-403-3937R20 | 10 | 3 | 25 | 70 | 10 | 2 | £67.66 | In Stock | |
| OSG-403-3937R25 | 10 | 3 | 25 | 70 | 10 | 2.5 | £67.66 | In Stock | |
| OSG-403-3937R30 | 10 | 3 | 25 | 70 | 10 | 3 | £67.66 | In Stock | |
| OSG-403-3937R32 | 10 | 3 | 25 | 70 | 10 | 3.2 | £67.66 | In Stock | |
| OSG-403-3937R40 | 10 | 3 | 25 | 70 | 10 | 4 | £67.66 | In Stock | |
| OSG-403-4724R02 | 12 | 3 | 25 | 76 | 12 | 0.2 | £105.15 | In Stock | |
| OSG-403-4724R025 | 12 | 3 | 25 | 76 | 12 | 0.25 | £105.15 | In Stock | |
| OSG-403-4724R03 | 12 | 3 | 25 | 76 | 12 | 0.3 | £105.15 | In Stock | |
| OSG-403-4724R05 | 12 | 3 | 25 | 76 | 12 | 0.5 | £105.15 | In Stock | |
| OSG-403-4724R075 | 12 | 3 | 25 | 76 | 12 | 0.75 | £105.15 | In Stock | |
| OSG-403-4724R08 | 12 | 3 | 25 | 76 | 12 | 0.8 | £105.15 | In Stock | |
| OSG-403-4724R10 | 12 | 3 | 25 | 76 | 12 | 1 | £105.15 | In Stock | |
| OSG-403-4724R15 | 12 | 3 | 25 | 76 | 12 | 1.5 | £105.15 | In Stock | |
| OSG-403-4724R20 | 12 | 3 | 25 | 76 | 12 | 2 | £105.15 | In Stock | |
| OSG-403-4724R25 | 12 | 3 | 25 | 76 | 12 | 2.5 | £105.15 | In Stock | |
| OSG-403-4724R30 | 12 | 3 | 25 | 76 | 12 | 3 | £105.15 | In Stock | |
| OSG-403-4724R32 | 12 | 3 | 25 | 76 | 12 | 3.2 | £105.15 | In Stock | |
| OSG-403-4724R40 Viewing | 12 | 3 | 25 | 76 | 12 | 4 | £105.15 | In Stock | |
| OSG-403-6299R05 | 16 | 3 | 32 | 89 | 16 | 0.5 | £203.06 | In Stock | |
| OSG-403-6299R10 | 16 | 3 | 32 | 89 | 16 | 1 | £203.06 | In Stock | |
| OSG-403-6299R15 | 16 | 3 | 32 | 89 | 16 | 1.5 | £203.06 | In Stock | |
| OSG-403-6299R20 | 16 | 3 | 32 | 89 | 16 | 2 | £203.06 | In Stock | |
| OSG-403-6299R25 | 16 | 3 | 32 | 89 | 16 | 2.5 | £203.06 | In Stock | |
| OSG-403-6299R30 | 16 | 3 | 32 | 89 | 16 | 3 | £203.06 | In Stock | |
| OSG-403-6299R40 | 16 | 3 | 32 | 89 | 16 | 4 | £203.06 | In Stock | |
| OSG-403-6299R50 | 16 | 3 | 32 | 89 | 16 | 5 | £203.06 | In Stock | |
| OSG-403-7874R05 | 20 | 3 | 38 | 102 | 20 | 0.5 | £257.73 | In Stock | |
| OSG-403-7874R10 | 20 | 3 | 38 | 102 | 20 | 1 | £257.73 | In Stock | |
| OSG-403-7874R20 | 20 | 3 | 38 | 102 | 20 | 2 | £257.73 | In Stock | |
| OSG-403-7874R30 | 20 | 3 | 38 | 102 | 20 | 3 | £257.73 | In Stock | |
| OSG-403-7874R50 | 20 | 3 | 38 | 102 | 20 | 5 | £257.73 | In Stock |
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