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OSG Carbide 4 Flute End Mill Ball Nose TiAlN Coated - Regular Length Centre Cutting For General Applications - 25mm
| Cutter Diameter | 25 |
| Number of Flutes | 4 |
| Flute Length | 38 |
| Overall Length | 102 |
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Description
The OSG Carbide 4 Flute End Mill with Ball Nose is a versatile cutting tool designed for a wide range of general machining tasks. With a 25 mm diameter, four-flute carbide body, regular-length shank, and a TiAlN coating, it’s built for contouring, profiling, and 3D shaping across metals and plastics. The center-cutting design provides reliable plunging capability for efficient machining in everyday production, prototyping, and workshop workflows.
- Ball Nose Geometry: Delivers smooth, rounded contours for complex 3D surfaces, fillets, and intricate profiles, reducing post-processing time and improving edge quality.
- TiAlN Coating for Wear Life: The protective coating boosts wear resistance and enables higher-speed machining, helping the tool last longer in demanding jobs and lowering replacement frequency.
- Center-Cutting, Regular-Length 4-Flute Design: Offers versatile plunging capability with efficient chip removal and stable cutting action, making it a reliable choice for a broad range of general milling tasks.
This end mill is designed to deliver consistent performance and trustworthy results across everyday milling needs. By combining precise ball-nose geometry, durable TiAlN protection, and a versatile center-cutting, regular-length form, it supports faster setup, fewer reworks, and better surface finishes—helping engineers, machinists, and hobbyists complete projects with confidence and efficiency.
Part Numbers
- Protool Part Number
- OSG-404-9843-BN11
- 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 TiAlN Coated - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-404-9843-BN11. 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-BN11 | 1 | 4 | 3 | 39 | 3 | £33.10 | In Stock | |
| OSG-404-0591-BN11 | 1.5 | 4 | 5 | 39 | 3 | £26.12 | In Stock | |
| OSG-404-0787-BN11 | 2 | 4 | 7 | 39 | 3 | £27.37 | In Stock | |
| OSG-404-0984-BN11 | 2.5 | 4 | 8 | 39 | 3 | £26.12 | In Stock | |
| OSG-404-1181-BN11 | 3 | 4 | 10 | 39 | 3 | £26.12 | In Stock | |
| OSG-404-1378-BN11 | 3.5 | 4 | 12 | 51 | 4 | £30.94 | In Stock | |
| OSG-404-1575-BN11 | 4 | 4 | 14 | 51 | 4 | £31.67 | In Stock | |
| OSG-404-1772-BN11 | 4.5 | 4 | 14 | 51 | 5 | £32.75 | In Stock | |
| OSG-404-1968-BN11 | 5 | 4 | 16 | 51 | 5 | £32.75 | In Stock | |
| OSG-404-2362-BN11 | 6 | 4 | 19 | 64 | 6 | £36.54 | In Stock | |
| OSG-404-2756-BN11 | 7 | 4 | 19 | 64 | 8 | £43.84 | In Stock | |
| OSG-404-3150-BN11 | 8 | 4 | 21 | 64 | 8 | £43.17 | In Stock | |
| OSG-404-3543-BN11 | 9 | 4 | 22 | 70 | 10 | £47.14 | In Stock | |
| OSG-404-3937-BN11 | 10 | 4 | 25 | 70 | 10 | £52.44 | In Stock | |
| OSG-404-4724-BN11 | 12 | 4 | 25 | 76 | 12 | £78.78 | In Stock | |
| OSG-404-5512-BN11 | 14 | 4 | 30 | 89 | 14 | £102.83 | In Stock | |
| OSG-404-6299-BN11 | 16 | 4 | 32 | 89 | 16 | £146.41 | In Stock | |
| OSG-404-7087-BN11 | 18 | 4 | 35 | 102 | 18 | £179.67 | In Stock | |
| OSG-404-7874-BN11 | 20 | 4 | 38 | 102 | 20 | £210.25 | In Stock | |
| OSG-404-8661-BN11 | 22 | 4 | 38 | 102 | 22 | £338.80 | In Stock | |
| OSG-404-9843-BN11 Viewing | 25 | 4 | 38 | 102 | 25 | £363.55 | In Stock |
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