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Widin Carbide Corner Radius End Mill - 4 Flute Long Shank - 12mm x R0.3
| Cutter Diameter | 12 |
| Number of Flutes | 4 |
| Flute Length | 30 |
| Overall Length | 110 |
| Shank Diameter | 12 |
| Corner Radius | 0.3 |
Learn more about Klarna
Meet the Widin Carbide Corner Radius End Mill—a high-performance cutting tool engineered for hard materials and deep groove work. Ideal for CNC machinists and shops that demand precision, durability, and consistent finishes across tough jobs.

- Diameter: 12 mm
- Corner Radius: R0.3
- Flutes: 4
- Shank: Long (extended reach for deep grooves)
- Material: Carbide for enhanced wear resistance and longer tool life
- Cutting Edge Design: High-strength corner radius optimizes cutting performance and stability
- Best For: High-hardness workpieces and deep groove milling
This end mill is specifically crafted to maintain rigidity and accuracy when milling tough materials. The long shank provides the reach needed for deep grooves and challenging geometries, while the four flutes balance chip evacuation with a smooth surface finish. The 0.3 mm corner radius preserves material integrity in internal corners, helping you achieve precise contours with fewer passes and less tool deflection. Built to handle demanding manufacturing environments, it delivers consistent results and reliable tool life across multiple jobs.
| Cutter Diameter | 12 |
| Number of Flutes | 4 |
| Flute Length | 30 |
| Overall Length | 110 |
| Shank Diameter | 12 |
| 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 ESR73412003. 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 | £34.80 | 5 days | |
| ESR73401002 | 1 | 4 | 2 | 50 | 6 | 0.2 | £34.80 | 5 days | |
| ESR73401003 | 1 | 4 | 2 | 50 | 6 | 0.3 | £34.80 | 5 days | |
| ESR73401501 | 1.5 | 4 | 3 | 50 | 6 | 0.1 | £34.80 | 5 days | |
| ESR73401502 | 1.5 | 4 | 3 | 50 | 6 | 0.2 | £34.80 | 5 days | |
| ESR73401503 | 1.5 | 4 | 3 | 50 | 6 | 0.3 | £34.80 | 5 days | |
| ESR73401505 | 1.5 | 4 | 3 | 50 | 6 | 0.5 | £34.80 | 5 days | |
| ESR73402001 | 2 | 4 | 5 | 50 | 6 | 0.1 | £34.80 | 5 days | |
| ESR73402002 | 2 | 4 | 5 | 50 | 6 | 0.2 | £34.80 | In Stock | |
| ESR73402005 | 2 | 4 | 5 | 50 | 6 | 0.5 | £34.80 | 5 days | |
| ESR73402003 | 2 | 4 | 5 | 50 | 6 | 0.3 | £34.80 | 5 days | |
| ESR73402501 | 2.5 | 4 | 7 | 60 | 6 | 0.1 | £35.83 | 5 days | |
| ESR73402502 | 2.5 | 4 | 7 | 60 | 6 | 0.2 | £35.83 | 5 days | |
| ESR73402503 | 2.5 | 4 | 7 | 60 | 6 | 0.3 | £35.83 | 5 days | |
| ESR73403001 | 3 | 4 | 8 | 60 | 6 | 0.1 | £35.83 | 5 days | |
| ESR73402505 | 2.5 | 4 | 7 | 60 | 6 | 0.5 | £35.83 | 5 days | |
| ESR73403002 | 3 | 4 | 8 | 60 | 6 | 0.2 | £35.83 | 5 days | |
| ESR73403003 | 3 | 4 | 8 | 60 | 6 | 0.3 | £35.83 | 5 days | |
| ESR73403005 | 3 | 4 | 8 | 60 | 6 | 0.5 | £35.83 | 5 days | |
| ESR73404002 | 4 | 4 | 10 | 70 | 6 | 0.2 | £36.85 | 5 days | |
| ESR73404001 | 4 | 4 | 10 | 70 | 6 | 0.1 | £36.85 | 5 days | |
| ESR73404003 | 4 | 4 | 10 | 70 | 6 | 0.3 | £36.85 | 5 days | |
| ESR73404005 | 4 | 4 | 10 | 70 | 6 | 0.5 | £36.85 | 5 days | |
| ESR73404010 | 4 | 4 | 10 | 70 | 6 | 1 | £36.85 | 5 days | |
| ESR73405001 | 5 | 4 | 13 | 80 | 6 | 0.1 | £41.95 | 5 days | |
| ESR73405002 | 5 | 4 | 13 | 80 | 6 | 0.2 | £41.95 | 5 days | |
| ESR73405003 | 5 | 4 | 13 | 80 | 6 | 0.3 | £41.95 | 5 days | |
| ESR73405005 | 5 | 4 | 13 | 80 | 6 | 0.5 | £41.95 | 5 days | |
| ESR73405010 | 5 | 4 | 13 | 80 | 6 | 1 | £41.95 | 5 days | |
| ESR73406001 | 6 | 4 | 15 | 90 | 6 | 0.1 | £42.98 | 5 days | |
| ESR73406002 | 6 | 4 | 15 | 90 | 6 | 0.2 | £42.98 | 5 days | |
| ESR73406003 | 6 | 4 | 15 | 90 | 6 | 0.3 | £42.98 | 5 days | |
| ESR73406005 | 6 | 4 | 15 | 90 | 6 | 0.5 | £42.98 | In Stock | |
| ESR73406010 | 6 | 4 | 15 | 90 | 6 | 1 | £42.98 | 5 days | |
| ESR73408001 | 8 | 4 | 20 | 100 | 8 | 0.1 | £57.38 | 5 days | |
| ESR73408002 | 8 | 4 | 20 | 100 | 8 | 0.2 | £57.38 | 5 days | |
| ESR73408003 | 8 | 4 | 20 | 100 | 8 | 0.3 | £57.38 | 5 days | |
| ESR73408005 | 8 | 4 | 20 | 100 | 8 | 0.5 | £57.38 | 5 days | |
| ESR73408010 | 8 | 4 | 20 | 100 | 8 | 1 | £57.38 | 5 days | |
| ESR73408020 | 8 | 4 | 20 | 100 | 8 | 2 | £57.38 | 5 days | |
| ESR73410002 | 10 | 4 | 25 | 100 | 10 | 0.2 | £82.05 | 5 days | |
| ESR73410003 | 10 | 4 | 25 | 100 | 10 | 0.3 | £82.05 | 5 days | |
| ESR73410005 | 10 | 4 | 25 | 100 | 10 | 0.5 | £82.05 | 5 days | |
| ESR73410010 | 10 | 4 | 25 | 100 | 10 | 1 | £82.05 | 5 days | |
| ESR73410020 | 10 | 4 | 25 | 100 | 10 | 2 | £82.05 | 5 days | |
| ESR73412002 | 12 | 4 | 30 | 110 | 12 | 0.2 | £120.78 | 5 days | |
| ESR73412003 Viewing | 12 | 4 | 30 | 110 | 12 | 0.3 | £120.78 | 5 days | |
| ESR73412005 | 12 | 4 | 30 | 110 | 12 | 0.5 | £120.78 | 5 days | |
| ESR73412010 | 12 | 4 | 30 | 110 | 12 | 1 | £120.78 | 5 days | |
| ESR73412020 | 12 | 4 | 30 | 110 | 12 | 2 | £120.78 | 5 days |
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