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Widin Carbide Corner Radius End Mill - 4 Flute - 4mm x R0.3
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 11 |
| Overall Length | 50 |
| Shank Diameter | 6 |
| Corner Radius | 0.3 |
Learn more about Klarna
The Widin Carbide Corner Radius End Mill is a precision cutting tool designed for machinists and shops that regularly work with hard materials. It features a 4 mm diameter and a 0.3 mm corner radius, delivering clean pockets, smooth edges, and reliable performance across tough metals.
- Diameter: 4 mm
- Corner Radius: R0.3 (0.3 mm) for smooth, precise corners
- Flute Count: 4-flute design for efficient chip evacuation and stable cutting
- Material: Solid carbide for high hardness workpieces and extended tool life
- Helix Angle: 45° to enable high-speed cutting with good rigidity and chip clearance
This end mill is designed to maximize material removal while preserving workpiece finish. The 45° helix and 4-flute geometry reduce cutting forces and improve stability at higher feeds, helping to minimize dwell time and keep tolerances tight on pockets, slots, and contours. The carbide construction resists wear, enabling longer intervals between tool changes and lower maintenance costs. Whether machining hardened steels or intricate profiles, this end mill delivers consistent results and predictable performance.
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 11 |
| Overall Length | 50 |
| 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 (ZR714)
View full collection →You are viewing ESR7140403. 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 |
|---|---|---|---|---|---|---|---|---|---|
| ESR7140303 | 3 | 4 | 8 | 50 | 6 | 0.3 | £34.06 | 5 days | |
| ESR7140405 | 4 | 4 | 11 | 50 | 6 | 0.5 | £34.06 | 5 days | |
| ESR7140305 | 3 | 4 | 8 | 50 | 6 | 0.5 | £34.06 | 5 days | |
| ESR7140803 | 8 | 4 | 20 | 60 | 8 | 0.3 | £41.79 | 5 days | |
| ESR7141003 | 10 | 4 | 25 | 70 | 10 | 0.3 | £58.88 | 5 days | |
| ESR7140603 | 6 | 4 | 15 | 60 | 6 | 0.3 | £34.06 | 5 days | |
| ESR7140810 | 8 | 4 | 20 | 60 | 8 | 1 | £41.79 | 5 days | |
| ESR7140805 | 8 | 4 | 20 | 60 | 8 | 0.5 | £41.79 | 5 days | |
| ESR7140820 | 8 | 4 | 20 | 60 | 8 | 2 | £41.79 | 5 days | |
| ESR7140815 | 8 | 4 | 20 | 60 | 8 | 1.5 | £41.79 | 5 days | |
| ESR7140610 | 6 | 4 | 15 | 60 | 6 | 1 | £34.06 | 5 days | |
| ESR7140605 | 6 | 4 | 15 | 60 | 6 | 0.5 | £34.06 | 5 days | |
| ESR7140403 Viewing | 4 | 4 | 11 | 50 | 6 | 0.3 | £34.06 | 5 days | |
| ESR7140410 | 4 | 4 | 11 | 50 | 6 | 1 | £34.06 | 5 days | |
| ESR7141005 | 10 | 4 | 25 | 60 | 10 | 0.5 | £58.88 | 5 days | |
| ESR7141020 | 10 | 4 | 25 | 60 | 10 | 2 | £58.88 | 5 days | |
| ESR7141015 | 10 | 4 | 25 | 60 | 10 | 1.5 | £58.88 | 5 days | |
| ESR7141010 | 10 | 4 | 25 | 60 | 10 | 1 | £58.88 | 5 days | |
| ESR7141030 | 10 | 4 | 25 | 60 | 10 | 3 | £58.88 | 5 days | |
| ESR7141025 | 10 | 4 | 25 | 60 | 10 | 2.5 | £58.88 | 5 days | |
| ESR7141203 | 12 | 4 | 30 | 80 | 12 | 0.3 | £82.44 | 5 days | |
| ESR7141205 | 12 | 4 | 30 | 80 | 12 | 0.5 | £82.44 | 5 days | |
| ESR7141215 | 12 | 4 | 30 | 80 | 12 | 1.5 | £82.44 | 5 days | |
| ESR7141210 | 12 | 4 | 30 | 80 | 12 | 1 | £82.44 | 5 days | |
| ESR7141220 | 12 | 4 | 30 | 80 | 12 | 2 | £82.44 | 5 days | |
| ESR7141230 | 12 | 4 | 30 | 80 | 12 | 3 | £82.44 | 5 days | |
| ESR7141225 | 12 | 4 | 30 | 80 | 12 | 2.5 | £82.44 | 5 days |
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