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OSG Carbide 4 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications - 16mm x R4
| Cutter Diameter | 16 |
| Number of Flutes | 4 |
| Flute Length | 32 |
| Overall Length | 89 |
Learn more about Klarna
Description
The OSG Carbide 4 Flute End Mill with Corner Radius is a general‑purpose cutting tool built for reliability across everyday milling tasks. Designed with a regular length and center‑cutting capability, it handles milling, slotting, and profiling with confidence. The 16 mm diameter and an R4 corner radius deliver precise, smooth cuts across a range of materials, while the TiAlN coating boosts wear resistance for longer tool life in demanding operations.
- TiAlN coating for extended tool life: The TiAlN coating enhances hardness and heat resistance, helping the end mill resist wear during demanding cuts and reducing the need for frequent replacements.
- Corner Radius (R4) for smoother, higher-quality finishes: The corner radius enables smoother entry and exit, minimizes edge chipping, and improves surface finish on profiles and slots.
- Four‑flute design with center-cutting capability for versatile, efficient milling: Four flutes provide strong rigidity and efficient chip evacuation, while center cutting allows plunging and accurate milling in general applications.
This end mill supports faster, more consistent results across a broad range of general machining tasks. Its durable carbide construction combined with a wear‑resistant TiAlN coating helps you complete jobs with fewer tool changes and less rework, while the corner radius and multi‑flute geometry deliver clean finishes and reliable performance in everyday milling, slotting, and profiling work.
Part Numbers
- Protool Part Number
- OSG-404-6299R40
- 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 4 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-404-6299R40. 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-404-1575R02 | 4 | 4 | 14 | 51 | 4 | 0.2 | £33.37 | In Stock | |
| OSG-404-1575R025 | 4 | 4 | 14 | 51 | 4 | 0.25 | £33.37 | In Stock | |
| OSG-404-1575R04 | 4 | 4 | 14 | 51 | 4 | 0.4 | £33.37 | In Stock | |
| OSG-404-1575R05 | 4 | 4 | 14 | 51 | 4 | 0.5 | £33.37 | In Stock | |
| OSG-404-1575R075 | 4 | 4 | 14 | 51 | 4 | 0.75 | £33.37 | In Stock | |
| OSG-404-1575R10 | 4 | 4 | 14 | 51 | 4 | 1 | £33.37 | In Stock | |
| OSG-404-1575R15 | 4 | 4 | 14 | 51 | 4 | 1.5 | £33.37 | In Stock | |
| OSG-404-1968R025 | 5 | 4 | 16 | 51 | 5 | 0.25 | £36.20 | In Stock | |
| OSG-404-1968R05 | 5 | 4 | 16 | 51 | 5 | 0.5 | £36.20 | In Stock | |
| OSG-404-1968R075 | 5 | 4 | 16 | 51 | 5 | 0.75 | £36.20 | In Stock | |
| OSG-404-1968R10 | 5 | 4 | 16 | 51 | 5 | 1 | £36.20 | In Stock | |
| OSG-404-1968R125 | 5 | 4 | 16 | 51 | 5 | 1.25 | £36.20 | In Stock | |
| OSG-404-1968R15 | 5 | 4 | 16 | 51 | 5 | 1.5 | £36.20 | In Stock | |
| OSG-404-1968R20 | 5 | 4 | 16 | 51 | 5 | 2 | £36.20 | In Stock | |
| OSG-404-2362R02 | 6 | 4 | 19 | 64 | 6 | 0.2 | £45.20 | In Stock | |
| OSG-404-2362R025 | 6 | 4 | 19 | 64 | 6 | 0.25 | £45.20 | In Stock | |
| OSG-404-2362R05 | 6 | 4 | 19 | 64 | 6 | 0.5 | £45.20 | In Stock | |
| OSG-404-2362R075 | 6 | 4 | 19 | 64 | 6 | 0.75 | £45.20 | In Stock | |
| OSG-404-2362R08 | 6 | 4 | 19 | 64 | 6 | 0.8 | £45.20 | In Stock | |
| OSG-404-2362R10 | 6 | 4 | 19 | 64 | 6 | 1 | £45.20 | In Stock | |
| OSG-404-2362R125 | 6 | 4 | 19 | 64 | 6 | 1.25 | £45.20 | In Stock | |
| OSG-404-2362R15 | 6 | 4 | 19 | 64 | 6 | 1.5 | £45.20 | In Stock | |
| OSG-404-2362R20 | 6 | 4 | 19 | 64 | 6 | 2 | £45.20 | In Stock | |
| OSG-404-3150R02 | 8 | 4 | 21 | 64 | 8 | 0.2 | £53.55 | In Stock | |
| OSG-404-3150R025 | 8 | 4 | 21 | 64 | 8 | 0.25 | £53.55 | In Stock | |
| OSG-404-3150R03 | 8 | 4 | 21 | 64 | 8 | 0.3 | £53.55 | In Stock | |
| OSG-404-3150R05 | 8 | 4 | 21 | 64 | 8 | 0.5 | £53.55 | In Stock | |
| OSG-404-3150R075 | 8 | 4 | 21 | 64 | 8 | 0.75 | £53.55 | In Stock | |
| OSG-404-3150R08 | 8 | 4 | 21 | 64 | 8 | 0.8 | £53.55 | In Stock | |
| OSG-404-3150R10 | 8 | 4 | 21 | 64 | 8 | 1 | £53.55 | In Stock | |
| OSG-404-3150R125 | 8 | 4 | 21 | 64 | 8 | 1.25 | £53.55 | In Stock | |
| OSG-404-3150R15 | 8 | 4 | 21 | 64 | 8 | 1.5 | £53.55 | In Stock | |
| OSG-404-3150R20 | 8 | 4 | 21 | 64 | 8 | 2 | £53.55 | In Stock | |
| OSG-404-3150R25 | 8 | 4 | 21 | 64 | 8 | 2.5 | £53.55 | In Stock | |
| OSG-404-3150R30 | 8 | 4 | 21 | 64 | 8 | 3 | £53.55 | In Stock | |
| OSG-404-3937R02 | 10 | 4 | 25 | 70 | 10 | 0.2 | £67.66 | In Stock | |
| OSG-404-3937R025 | 10 | 4 | 25 | 70 | 10 | 0.25 | £67.66 | In Stock | |
| OSG-404-3937R04 | 10 | 4 | 25 | 70 | 10 | 0.4 | £67.66 | In Stock | |
| OSG-404-3937R05 | 10 | 4 | 25 | 70 | 10 | 0.5 | £67.66 | In Stock | |
| OSG-404-3937R08 | 10 | 4 | 25 | 70 | 10 | 0.8 | £67.66 | In Stock | |
| OSG-404-3937R10 | 10 | 4 | 25 | 70 | 10 | 1 | £67.66 | In Stock | |
| OSG-404-3937R125 | 10 | 4 | 25 | 70 | 10 | 1.25 | £67.66 | In Stock | |
| OSG-404-3937R15 | 10 | 4 | 25 | 70 | 10 | 1.5 | £67.66 | In Stock | |
| OSG-404-3937R20 | 10 | 4 | 25 | 70 | 10 | 2 | £67.66 | In Stock | |
| OSG-404-3937R25 | 10 | 4 | 25 | 70 | 10 | 2.5 | £67.66 | In Stock | |
| OSG-404-3937R30 | 10 | 4 | 25 | 70 | 10 | 3 | £67.66 | In Stock | |
| OSG-404-3937R32 | 10 | 4 | 25 | 70 | 10 | 3.2 | £67.66 | In Stock | |
| OSG-404-3937R40 | 10 | 4 | 25 | 70 | 10 | 4 | £67.66 | In Stock | |
| OSG-404-4724R02 | 12 | 4 | 25 | 76 | 12 | 0.2 | £105.15 | In Stock | |
| OSG-404-4724R025 | 12 | 4 | 25 | 76 | 12 | 0.25 | £105.15 | In Stock | |
| OSG-404-4724R03 | 12 | 4 | 25 | 76 | 12 | 0.3 | £105.15 | In Stock | |
| OSG-404-4724R05 | 12 | 4 | 25 | 76 | 12 | 0.5 | £105.15 | In Stock | |
| OSG-404-4724R075 | 12 | 4 | 25 | 76 | 12 | 0.75 | £105.15 | In Stock | |
| OSG-404-4724R08 | 12 | 4 | 25 | 76 | 12 | 0.8 | £105.15 | In Stock | |
| OSG-404-4724R10 | 12 | 4 | 25 | 76 | 12 | 1 | £105.15 | In Stock | |
| OSG-404-4724R15 | 12 | 4 | 25 | 76 | 12 | 1.5 | £105.15 | In Stock | |
| OSG-404-4724R20 | 12 | 4 | 25 | 76 | 12 | 2 | £105.15 | In Stock | |
| OSG-404-4724R25 | 12 | 4 | 25 | 76 | 12 | 2.5 | £105.15 | In Stock | |
| OSG-404-4724R30 | 12 | 4 | 25 | 76 | 12 | 3 | £105.15 | In Stock | |
| OSG-404-4724R32 | 12 | 4 | 25 | 76 | 12 | 3.2 | £105.15 | In Stock | |
| OSG-404-4724R40 | 12 | 4 | 25 | 76 | 12 | 4 | £105.15 | In Stock | |
| OSG-404-6299R05 | 16 | 4 | 32 | 89 | 16 | 0.5 | £203.06 | In Stock | |
| OSG-404-6299R10 | 16 | 4 | 32 | 89 | 16 | 1 | £203.06 | In Stock | |
| OSG-404-6299R15 | 16 | 4 | 32 | 89 | 16 | 1.5 | £203.06 | In Stock | |
| OSG-404-6299R20 | 16 | 4 | 32 | 89 | 16 | 2 | £203.06 | In Stock | |
| OSG-404-6299R25 | 16 | 4 | 32 | 89 | 16 | 2.5 | £203.06 | In Stock | |
| OSG-404-6299R30 | 16 | 4 | 32 | 89 | 16 | 3 | £203.06 | In Stock | |
| OSG-404-6299R40 Viewing | 16 | 4 | 32 | 89 | 16 | 4 | £203.06 | In Stock | |
| OSG-404-6299R50 | 16 | 4 | 32 | 89 | 16 | 5 | £203.06 | In Stock | |
| OSG-404-7874R05 | 20 | 4 | 38 | 102 | 20 | 0.5 | £257.73 | In Stock | |
| OSG-404-7874R10 | 20 | 4 | 38 | 102 | 20 | 1 | £257.73 | In Stock | |
| OSG-404-7874R20 | 20 | 4 | 38 | 102 | 20 | 2 | £257.73 | In Stock | |
| OSG-404-7874R30 | 20 | 4 | 38 | 102 | 20 | 3 | £257.73 | In Stock | |
| OSG-404-7874R50 | 20 | 4 | 38 | 102 | 20 | 5 | £257.73 | In Stock |
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