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OSG Carbide 4 Flute End Mill Ball Nose - Regular Length Centre Cutting For General Applications - 11mm
| Cutter Diameter | 11 |
| Number of Flutes | 4 |
| Flute Length | 25 |
| Overall Length | 70 |
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Description
The OSG Carbide 4 Flute End Mill with Ball Nose, Regular Length, center cutting, and an 11mm diameter is a versatile tool designed for general machining tasks. Its ball nose geometry excels in contouring, profiling, and 3D work, delivering precise, smooth finishes with efficient material removal.
Engineers, machinists, hobbyists, and buyers will appreciate its reliable performance across aerospace, automotive, and general manufacturing applications.
- Ball Nose Geometry for Smooth 3D Contouring: Optimizes complex surfaces and profiles, producing clean curves and refined finishes with fewer passes.
- Four-Flute Rigidity and Efficient Material Removal: The extra flute enhances rigidity and chip evacuation, improving surface quality and reducing cycle times on demanding jobs.
- Regular Length Center-Cutting Versatility: Excellent for plunging and general milling, delivering consistent results across a wide range of materials and applications.
In everyday production, this end mill helps you achieve repeatable, high-quality results with less downtime. The 11mm diameter provides a balanced blend of aggressive material removal and fine detailing, making it suitable for prototype work through to ongoing manufacturing. With carbide construction and proven geometry, you can rely on durable performance and long tool life in diverse machining tasks.
Part Numbers
- Protool Part Number
- OSG-404-4331-BN
- 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 Ball Nose - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-404-4331-BN. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-404-0394-BN | 1 | 4 | 3 | 39 | 3 | £22.04 | In Stock | |
| OSG-404-0591-BN | 1.5 | 4 | 5 | 39 | 3 | £14.23 | In Stock | |
| OSG-404-0787-BN | 2 | 4 | 7 | 39 | 3 | £15.63 | In Stock | |
| OSG-404-0984-BN | 2.5 | 4 | 8 | 39 | 3 | £14.23 | In Stock | |
| OSG-404-1181-BN | 3 | 4 | 10 | 39 | 3 | £14.24 | In Stock | |
| OSG-404-1378-BN | 3.5 | 4 | 12 | 51 | 4 | £19.58 | In Stock | |
| OSG-404-1575-BN | 4 | 4 | 14 | 51 | 4 | £20.48 | In Stock | |
| OSG-404-1772-BN | 4.5 | 4 | 14 | 51 | 5 | £21.64 | In Stock | |
| OSG-404-1968-BN | 5 | 4 | 16 | 51 | 5 | £21.64 | In Stock | |
| OSG-404-2362-BN | 6 | 4 | 19 | 64 | 6 | £25.90 | In Stock | |
| OSG-404-2756-BN | 7 | 4 | 19 | 64 | 8 | £30.87 | In Stock | |
| OSG-404-3150-BN | 8 | 4 | 21 | 64 | 8 | £30.15 | In Stock | |
| OSG-404-3543-BN | 9 | 4 | 22 | 70 | 10 | £34.56 | In Stock | |
| OSG-404-3937-BN | 10 | 4 | 25 | 70 | 10 | £40.53 | In Stock | |
| OSG-404-4331-BN Viewing | 11 | 4 | 25 | 70 | 11 | £55.57 | In Stock | |
| OSG-404-4724-BN | 12 | 4 | 25 | 76 | 12 | £66.80 | In Stock | |
| OSG-404-5512-BN | 14 | 4 | 30 | 89 | 14 | £93.72 | In Stock | |
| OSG-404-6299-BN | 16 | 4 | 32 | 89 | 16 | £136.82 | In Stock | |
| OSG-404-7087-BN | 18 | 4 | 35 | 102 | 18 | £176.66 | In Stock | |
| OSG-404-7874-BN | 20 | 4 | 38 | 102 | 20 | £200.78 | In Stock | |
| OSG-404-8661-BN | 22 | 4 | 38 | 102 | 22 | £342.17 | 1-2 days | |
| OSG-404-9843-BN | 25 | 4 | 38 | 102 | 25 | £371.28 | In Stock |
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