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OSG Carbide 4 Flute End Mill Square TiAlN Coated - Regular Length Centre Cutting For General Applications - 4mm
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 14 |
| Overall Length | 51 |
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Description
The OSG Carbide 4 Flute End Mill Square with TiAlN coating is a centre-cutting, regular-length tool designed for general machining tasks. With four flutes, it delivers efficient material removal during milling, slotting, and profiling, helping you achieve precise cuts with fewer passes.
Built for engineers, machinists, and hobbyists alike, this end mill combines durable carbide with a TiAlN coating to resist wear and heat. It stays sharp under demanding cutting conditions, providing reliable performance across a wide range of materials and applications.
- Centre-cutting versatility: Enables plunge milling and slotting without pre-drilling, delivering clean starts and versatile operation across many materials.
- TiAlN-coated durability: The TiAlN coating increases hardness and heat resistance, extending tool life and maintaining edge sharpness through demanding cuts.
- Regular-length, four-flute efficiency: Balances aggressive material removal with rigidity and a smooth finish, making it ideal for general milling, profiling, and slotting tasks.
This end mill helps you streamline workflows with predictable, high-quality results. The combination of 4-flute geometry and TiAlN coating improves productivity by reducing tool changes and extending standout performance in everyday milling, ensuring consistent finishes and reliable performance across common materials.
Part Numbers
- Protool Part Number
- OSG-404-157511
- 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 Square TiAlN Coated - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-404-157511. 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-404-039411 | 1 | 4 | 25 | 25 | 25 | £33.11 | In Stock | |
| OSG-404-059111 | 1.5 | 4 | 25 | 25 | 25 | £27.53 | In Stock | |
| OSG-404-078711 | 2 | 4 | 25 | 25 | 25 | £28.78 | In Stock | |
| OSG-404-098411 | 2.5 | 4 | 25 | 25 | 25 | £27.53 | In Stock | |
| OSG-404-118111 | 3 | 4 | 25 | 25 | 25 | £27.53 | In Stock | |
| OSG-404-137811 | 3.5 | 4 | 25 | 25 | 25 | £32.26 | In Stock | |
| OSG-404-157511 Viewing | 4 | 4 | 25 | 25 | 25 | £32.98 | In Stock | |
| OSG-404-177211 | 4.5 | 4 | 25 | 25 | 25 | £34.05 | In Stock | |
| OSG-404-196811 | 5 | 4 | 25 | 25 | 25 | £34.05 | In Stock | |
| OSG-404-236211 | 6 | 4 | 25 | 25 | 25 | £37.68 | In Stock | |
| OSG-404-275611 | 7 | 4 | 25 | 25 | 25 | £45.31 | In Stock | |
| OSG-404-315011 | 8 | 4 | 25 | 25 | 25 | £44.63 | In Stock | |
| OSG-404-354311 | 9 | 4 | 25 | 25 | 25 | £51.23 | In Stock | |
| OSG-404-393711 | 10 | 4 | 25 | 25 | 25 | £53.75 | In Stock | |
| OSG-404-433111 | 11 | 4 | 25 | 25 | 25 | £70.26 | In Stock | |
| OSG-404-472411 | 12 | 4 | 25 | 25 | 25 | £79.90 | In Stock | |
| OSG-404-551211 | 14 | 4 | 25 | 25 | 25 | £103.42 | In Stock | |
| OSG-404-629911 | 16 | 4 | 25 | 25 | 25 | £157.83 | In Stock | |
| OSG-404-708711 | 18 | 4 | 25 | 25 | 25 | £192.53 | In Stock | |
| OSG-404-787411 | 20 | 4 | 25 | 25 | 25 | £226.15 | In Stock | |
| OSG-404-866111 | 22 | 4 | 25 | 25 | 25 | £361.90 | In Stock | |
| OSG-404-984311 | 25 | 4 | 25 | 25 | 25 | £387.73 | In Stock |
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