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OSG Carbide 4 Flute End Mill Ball Nose - Regular Length Centre Cutting For General Applications - 1mm
| Cutter Diameter | 1 |
| Number of Flutes | 4 |
| Flute Length | 3 |
| Overall Length | 39 |
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Description
The OSG Carbide 4 Flute End Mill with Ball Nose features a 1 mm diameter, four-flute configuration, a regular-length body, and center-cutting capability. Designed for general machining, it excels at contouring, profiling, and 3D work, delivering precise finishes with efficient material removal in a single tool.
Ideal for engineers, machinists, hobbyists, and manufacturers across aerospace, automotive, and general production, this end mill combines durable carbide construction with smart geometry to provide reliable performance on a wide range of tasks.
- Ball Nose Geometry for Smooth Contouring: Ball nose tips create gentle radii on complex surfaces, delivering high-quality finishes on 3D profiles and precise edge definitions.
- Four-Flute Carbide Design for Efficient Material Removal: The extra flute improves rigidity and chip evacuation, enabling steadier cuts and cleaner results across a variety of materials.
- Regular-Length, Center-Cutting Versatility: The balanced length offers good reach with stability, while center cutting allows plunging and versatile setups without repositioning.
This combination of precise contouring capability, durable construction, and flexible use helps you complete complex parts faster, maintain tight tolerances, and reduce tool-changing downtime across a broad set of general machining tasks.
Part Numbers
- Protool Part Number
- OSG-404-0394-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-404-0394-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 Viewing | 1 | 4 | 3 | 39 | 3 | £19.59 | In Stock | |
| OSG-404-0591-BN | 1.5 | 4 | 5 | 39 | 3 | £12.65 | In Stock | |
| OSG-404-0787-BN | 2 | 4 | 7 | 39 | 3 | £13.89 | In Stock | |
| OSG-404-0984-BN | 2.5 | 4 | 8 | 39 | 3 | £12.65 | In Stock | |
| OSG-404-1181-BN | 3 | 4 | 10 | 39 | 3 | £12.66 | In Stock | |
| OSG-404-1378-BN | 3.5 | 4 | 12 | 51 | 4 | £17.41 | In Stock | |
| OSG-404-1575-BN | 4 | 4 | 14 | 51 | 4 | £18.21 | In Stock | |
| OSG-404-1772-BN | 4.5 | 4 | 14 | 51 | 5 | £19.24 | In Stock | |
| OSG-404-1968-BN | 5 | 4 | 16 | 51 | 5 | £19.24 | In Stock | |
| OSG-404-2362-BN | 6 | 4 | 19 | 64 | 6 | £23.02 | In Stock | |
| OSG-404-2756-BN | 7 | 4 | 19 | 64 | 8 | £27.44 | In Stock | |
| OSG-404-3150-BN | 8 | 4 | 21 | 64 | 8 | £26.80 | In Stock | |
| OSG-404-3543-BN | 9 | 4 | 22 | 70 | 10 | £30.71 | In Stock | |
| OSG-404-3937-BN | 10 | 4 | 25 | 70 | 10 | £36.03 | In Stock | |
| OSG-404-4331-BN | 11 | 4 | 25 | 70 | 11 | £49.39 | In Stock | |
| OSG-404-4724-BN | 12 | 4 | 25 | 76 | 12 | £59.38 | In Stock | |
| OSG-404-5512-BN | 14 | 4 | 30 | 89 | 14 | £83.30 | In Stock | |
| OSG-404-6299-BN | 16 | 4 | 32 | 89 | 16 | £114.02 | In Stock | |
| OSG-404-7087-BN | 18 | 4 | 35 | 102 | 18 | £147.22 | In Stock | |
| OSG-404-7874-BN | 20 | 4 | 38 | 102 | 20 | £167.32 | In Stock | |
| OSG-404-8661-BN | 22 | 4 | 38 | 102 | 22 | £285.14 | 1-2 days | |
| OSG-404-9843-BN | 25 | 4 | 38 | 102 | 25 | £309.40 | In Stock |
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