Please log in here to access all benefits, including promotional discounts and faster checkouts.
OSG Carbide 4 Flute End Mill Ball Nose - Regular Length Centre Cutting For General Applications - 4.5mm
| Cutter Diameter | 4.5 |
| Number of Flutes | 4 |
| Flute Length | 14 |
| Overall Length | 51 |
Learn more about Klarna
Description
The OSG Carbide 4 Flute End Mill with Ball Nose (4.5 mm diameter) is a versatile cutting tool designed for general machining tasks, delivering smooth 3D contours and precise profiling with every pass. Its regular-length body, four-flute geometry, and center-cutting capability make it a dependable choice for engineers, machinists, hobbyists, and fabricators tackling contouring, profiling, and 3D shaping across a range of materials.
- Ball nose geometry for smooth contouring: Creates gentle radii and high-quality surface finishes on curved features and 3D shapes, reducing the need for extra finishing passes.
- Four-flute carbide design for efficient material removal: More cutting edges and a rigid body enable faster stock removal and stable tool life across common machining tasks.
- Center-cutting for versatile milling: Lets you plunge start cuts and machine from any starting point with consistent engagement and clean entry, improving setup speed and reliability.
This end mill helps you complete parts faster with consistent finishes and longer tool life. The 4.5 mm diameter, 4-flute carbide profile delivers reliable performance for contouring, profiling, and 3D shaping, while the ball-end geometry provides smooth transitions on curved surfaces. With center-cutting capability and robust construction, you gain confidence, reduced downtime, and a dependable tool that supports everyday manufacturing tasks from prototype work to production runs.
Part Numbers
- Protool Part Number
- OSG-404-1772-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-404-1772-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 Viewing | 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 | 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 |
No products match your filters.
