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Widin Carbide Corner Radius End Mill - 4 Flute Long Shank - 4mm x R0.3
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 10 |
| Overall Length | 70 |
| Shank Diameter | 6 |
| Corner Radius | 0.3 |
Learn more about Klarna
The Widin Carbide Corner Radius End Mill is a high-performance cutting tool designed for machinists and engineers tackling hard materials with precision. With a 4 mm cutting diameter and a 0.3 mm corner radius, it delivers accurate corners and reliable fillets, while the long shank provides reach for deep grooves and tight pockets.

- Diameter x Radius: 4 mm cutting diameter with a 0.3 mm corner radius for precise corners and clean fillets.
- Flute Count: 4-flute geometry tuned for effective material removal and stable cutting.
- Long Shank: Extended shank enables access to deep grooves and hard-to-reach pockets.
- Material: Carbide construction delivers hardness, wear resistance, and longer tool life.
- Cutting Edge Geometry: Special high-strength edge design enhances cutting performance on tough workpieces.
- Application Focus: Ideal for deep groove milling, pocketing, and precise corner radii in high-hardness materials.
- Stability and Durability: Rigid geometry minimizes deflection and maintains consistent finishes under load.
The combination of a high-strength corner radius, four flutes, and a long shank makes this end mill a reliable choice for demanding milling tasks. Whether you’re shaping tight corners in hardened steels, machining precise fillets in molds, or finishing deep grooves in complex parts, this tool maintains accuracy, repeatability, and tool life across extended sessions.
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 10 |
| Overall Length | 70 |
| Shank Diameter | 6 |
| Corner Radius | 0.3 |
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: Widin Carbide Corner Radius End Mill - 4 Flute Long Shank (ZR734)
View full collection →You are viewing ESR73404003. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Corner Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| ESR73401001 | 1 | 4 | 2 | 50 | 6 | 0.1 | £38.64 | 5 days | |
| ESR73401002 | 1 | 4 | 2 | 50 | 6 | 0.2 | £38.64 | 5 days | |
| ESR73401003 | 1 | 4 | 2 | 50 | 6 | 0.3 | £38.64 | 5 days | |
| ESR73401501 | 1.5 | 4 | 3 | 50 | 6 | 0.1 | £38.64 | 5 days | |
| ESR73401502 | 1.5 | 4 | 3 | 50 | 6 | 0.2 | £38.64 | 5 days | |
| ESR73401503 | 1.5 | 4 | 3 | 50 | 6 | 0.3 | £38.64 | 5 days | |
| ESR73401505 | 1.5 | 4 | 3 | 50 | 6 | 0.5 | £38.64 | 5 days | |
| ESR73402001 | 2 | 4 | 5 | 50 | 6 | 0.1 | £38.64 | 5 days | |
| ESR73402002 | 2 | 4 | 5 | 50 | 6 | 0.2 | £15.46 | In Stock | |
| ESR73402005 | 2 | 4 | 5 | 50 | 6 | 0.5 | £38.64 | 5 days | |
| ESR73402003 | 2 | 4 | 5 | 50 | 6 | 0.3 | £38.64 | 5 days | |
| ESR73402501 | 2.5 | 4 | 7 | 60 | 6 | 0.1 | £39.78 | 5 days | |
| ESR73402502 | 2.5 | 4 | 7 | 60 | 6 | 0.2 | £39.78 | 5 days | |
| ESR73402503 | 2.5 | 4 | 7 | 60 | 6 | 0.3 | £39.78 | 5 days | |
| ESR73403001 | 3 | 4 | 8 | 60 | 6 | 0.1 | £39.78 | 5 days | |
| ESR73402505 | 2.5 | 4 | 7 | 60 | 6 | 0.5 | £39.78 | 5 days | |
| ESR73403002 | 3 | 4 | 8 | 60 | 6 | 0.2 | £39.78 | 5 days | |
| ESR73403003 | 3 | 4 | 8 | 60 | 6 | 0.3 | £39.78 | 5 days | |
| ESR73403005 | 3 | 4 | 8 | 60 | 6 | 0.5 | £39.78 | 5 days | |
| ESR73404002 | 4 | 4 | 10 | 70 | 6 | 0.2 | £16.37 | 5 days | View |
| ESR73404001 | 4 | 4 | 10 | 70 | 6 | 0.1 | £40.91 | 5 days | |
| ESR73404003 Viewing | 4 | 4 | 10 | 70 | 6 | 0.3 | £40.91 | 5 days | |
| ESR73404005 | 4 | 4 | 10 | 70 | 6 | 0.5 | £40.91 | 5 days | |
| ESR73404010 | 4 | 4 | 10 | 70 | 6 | 1 | £40.91 | 5 days | |
| ESR73405001 | 5 | 4 | 13 | 80 | 6 | 0.1 | £46.59 | 5 days | |
| ESR73405002 | 5 | 4 | 13 | 80 | 6 | 0.2 | £46.59 | 5 days | |
| ESR73405003 | 5 | 4 | 13 | 80 | 6 | 0.3 | £46.59 | 5 days | |
| ESR73405005 | 5 | 4 | 13 | 80 | 6 | 0.5 | £46.59 | 5 days | |
| ESR73405010 | 5 | 4 | 13 | 80 | 6 | 1 | £46.59 | 5 days | |
| ESR73406001 | 6 | 4 | 15 | 90 | 6 | 0.1 | £47.73 | 5 days | |
| ESR73406002 | 6 | 4 | 15 | 90 | 6 | 0.2 | £47.73 | 5 days | |
| ESR73406003 | 6 | 4 | 15 | 90 | 6 | 0.3 | £47.73 | 5 days | |
| ESR73406005 | 6 | 4 | 15 | 90 | 6 | 0.5 | £19.10 | In Stock | |
| ESR73406010 | 6 | 4 | 15 | 90 | 6 | 1 | £47.73 | 5 days | |
| ESR73408001 | 8 | 4 | 20 | 100 | 8 | 0.1 | £62.02 | 5 days | |
| ESR73408002 | 8 | 4 | 20 | 100 | 8 | 0.2 | £62.02 | 5 days | |
| ESR73408003 | 8 | 4 | 20 | 100 | 8 | 0.3 | £62.02 | 5 days | |
| ESR73408005 | 8 | 4 | 20 | 100 | 8 | 0.5 | £62.02 | 5 days | |
| ESR73408010 | 8 | 4 | 20 | 100 | 8 | 1 | £62.02 | 5 days | |
| ESR73408020 | 8 | 4 | 20 | 100 | 8 | 2 | £62.02 | 5 days | |
| ESR73410002 | 10 | 4 | 25 | 100 | 10 | 0.2 | £85.01 | 5 days | |
| ESR73410003 | 10 | 4 | 25 | 100 | 10 | 0.3 | £85.01 | 5 days | |
| ESR73410005 | 10 | 4 | 25 | 100 | 10 | 0.5 | £85.01 | 5 days | |
| ESR73410010 | 10 | 4 | 25 | 100 | 10 | 1 | £85.01 | 5 days | |
| ESR73410020 | 10 | 4 | 25 | 100 | 10 | 2 | £85.01 | 5 days | |
| ESR73412002 | 12 | 4 | 30 | 110 | 12 | 0.2 | £120.13 | 5 days | |
| ESR73412003 | 12 | 4 | 30 | 110 | 12 | 0.3 | £120.13 | 5 days | |
| ESR73412005 | 12 | 4 | 30 | 110 | 12 | 0.5 | £120.13 | 5 days | |
| ESR73412010 | 12 | 4 | 30 | 110 | 12 | 1 | £120.13 | 5 days | |
| ESR73412020 | 12 | 4 | 30 | 110 | 12 | 2 | £120.13 | 5 days |
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