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OSG Carbide 4 Flute End Mill Corner Radius TiSlN Coated - For Exotic Materials - 16mm x R0.3
| Cutter Diameter | 16 |
| Number of Flutes | 4 |
| Flute Length | 40 |
| Overall Length | 93 |
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Description
The OSG Carbide 4 Flute End Mill with a 16 mm diameter and an R0.3 corner radius is a precision carbide cutting tool designed for exotic materials. Coated with TiSlN, it delivers durable wear resistance and consistent edge quality for demanding machining tasks. This end mill is built for engineers, machine shops, and hobbyists who need reliable performance in tough cutting conditions.
- Corner Radius for Smooth Edge Quality: The 0.3 mm corner radius creates rounded corners that reduce edge chipping, improve surface finish on curved features, and promote steadier cutting across challenging geometries.
- TiSlN Coating for Extended Tool Life: The TiSlN coating enhances wear resistance and heat tolerance, helping the cutting edge stay sharper longer when working with exotic materials and high-temperature cuts.
- Four-Flute Design for Stability and Efficiency: Four flutes provide a balanced combination of rigidity, chip evacuation, and aggressive material removal, enabling smoother cuts and cleaner finishes in tough alloys.
Together, these features translate into tangible workflow benefits: longer intervals between sharpening, fewer reworks from imperfect edges, and faster cycle times thanks to efficient material removal. The 16 mm diameter and R0.3 corner radius offer robust performance for larger features while maintaining precision in complex geometries, making this end mill a dependable choice for production runs or prototype work involving exotic materials.
Part Numbers
- Protool Part Number
- OSG-501-6299R03
- 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 TiSlN Coated - For Exotic Materials
View full collection →You are viewing OSG-501-6299R03. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Reach | Neck Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|
| OSG-501-1181R03 | 3 | 4 | 8 | 58 | 6 | 0.3 | £38.91 | In Stock | ||
| OSG-501-1181R05 | 3 | 4 | 8 | 58 | 6 | 0.5 | £38.91 | In Stock | ||
| OSG-501-1575R03 | 4 | 4 | 11 | 58 | 6 | 0.3 | £38.91 | In Stock | ||
| OSG-501-1575R05 | 4 | 4 | 11 | 58 | 6 | 0.5 | £38.91 | In Stock | ||
| OSG-501-1968R03 | 5 | 4 | 13 | 58 | 6 | 0.3 | £38.91 | In Stock | ||
| OSG-501-1968R05 | 5 | 4 | 13 | 58 | 6 | 0.5 | £38.91 | In Stock | ||
| OSG-501-2362R03 | 6 | 4 | 15 | 58 | 6 | 20 | 5.8 | £42.15 | In Stock | |
| OSG-501-2362R05 | 6 | 4 | 15 | 58 | 6 | 20 | 5.8 | £42.15 | In Stock | |
| OSG-501-2362R10 | 6 | 4 | 15 | 58 | 6 | 20 | 5.8 | £42.15 | In Stock | |
| OSG-501-2362R15 | 6 | 4 | 15 | 58 | 6 | 20 | 5.8 | £42.15 | In Stock | |
| OSG-501-2362R20 | 6 | 4 | 15 | 58 | 6 | 20 | 5.8 | £42.15 | In Stock | |
| OSG-501-3150R03 | 8 | 4 | 20 | 64 | 8 | 25 | 7.8 | £50.26 | In Stock | |
| OSG-501-3150R05 | 8 | 4 | 20 | 64 | 8 | 25 | 7.8 | £50.26 | In Stock | |
| OSG-501-3150R10 | 8 | 4 | 20 | 64 | 8 | 25 | 7.8 | £50.26 | In Stock | |
| OSG-501-3150R15 | 8 | 4 | 20 | 64 | 8 | 25 | 7.8 | £50.26 | In Stock | |
| OSG-501-3150R20 | 8 | 4 | 20 | 64 | 8 | 25 | 9.8 | £50.26 | In Stock | |
| OSG-501-3937R03 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-3937R05 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-3937R10 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-3937R15 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-3937R20 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-3937R30 | 10 | 4 | 25 | 73 | 10 | 30 | 9.8 | £71.35 | In Stock | |
| OSG-501-4724R03 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-4724R05 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-4724R10 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-4724R15 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-4724R20 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-4724R30 | 12 | 4 | 30 | 84 | 12 | 38 | 11.8 | £97.26 | In Stock | |
| OSG-501-6299R03 Viewing | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R05 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R10 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R15 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R20 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R30 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-6299R40 | 16 | 4 | 40 | 93 | 16 | 45 | 15.8 | £173.70 | In Stock | |
| OSG-501-7874R03 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R05 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R10 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R15 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R20 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R30 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R40 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock | |
| OSG-501-7874R50 | 20 | 4 | 50 | 105 | 20 | 60 | 19.8 | £256.71 | In Stock |
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