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Widin Carbide Corner Radius End Mill - 4 Flute Stub Cut Length - 4mm x 20mm x R0.3
SKU:ESR7040400320
The Widin Carbide Corner Radius End Mill is a precise, reliable cutting tool designed for machinists who need clean radii and sharp corners on hard materials. With a 4 mm diameter and a 20 mm len...
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Specification
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| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 6 |
| Overall Length | 60 |
| Shank Diameter | 6 |
| Reach | 20 |
£37.83
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
The Widin Carbide Corner Radius End Mill is a precise, reliable cutting tool designed for machinists who need clean radii and sharp corners on hard materials. With a 4 mm diameter and a 20 mm length of cut in a 4‑flute stub profile, it delivers rigidity and consistent edge definition in compact tooling.
- Diameter: 4 mm
- Flute count: 4-flute design for efficient chip evacuation and stable cutting
- Length of cut: 20 mm (stub-cut geometry to maximize rigidity and reduce deflection)
- Corner radius: R0.3 mm for precise fillets and controlled edge rounding
- Material: Solid carbide for high hardness resistance and long tool life
- Series: ZR704 series, offering reliable corner radii and effective lengths for flexible machining
- Application focus: Tailored for high-hardness workpieces and demanding milling tasks where consistent radii and sharp corners matter
Designed to tackle high-hardness materials with confidence, this end mill maintains dimensional stability under load thanks to its carbide construction and stub-length geometry. The 4-flute configuration balances material removal with finish quality, helping you achieve smooth walls and accurate corners in a single pass. The 0.3 mm corner radius enables precise fillets and controlled edge shaping without sacrificing tool life. Whether you’re pocketing, profiling, or finishing small features, this end mill delivers dependable performance and repeatable results.
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 6 |
| Overall Length | 60 |
| Shank Diameter | 6 |
| Reach | 20 |
| Corner Radius | 0.3 |
| Neck Diameter | 3.8 |
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.
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Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
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first place we look
honest about stock and prices are competitive.
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Full Range: Widin Carbide Corner Radius End Mill - 4 Flute Stub Cut Length (ZR704)
View full collection →You are viewing ESR7040400320. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Reach | Corner Radius | Neck Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ESR7040100306S4 | 1 | 4 | 2 | 50 | 4 | 6 | 0.3 | 0.95 | £34.81 | 5 days | |
| ESR7040100303S4 | 1 | 4 | 2 | 50 | 4 | 3 | 0.3 | 0.95 | £34.81 | 5 days | |
| ESR7040100104S4 | 1 | 4 | 2 | 50 | 4 | 4 | 0.1 | 0.95 | £34.81 | 5 days | |
| ESR7040150106S4 | 1.5 | 4 | 2.5 | 50 | 4 | 6 | 0.1 | 1.45 | £34.81 | 5 days | |
| ESR7040100106S4 | 1 | 4 | 2 | 50 | 4 | 6 | 0.1 | 0.95 | £34.81 | 5 days | |
| ESR7040150204S4 | 1.5 | 4 | 2.5 | 50 | 4 | 4 | 0.2 | 1.45 | £34.81 | 5 days | |
| ESR7040100206S4 | 1 | 4 | 2 | 50 | 4 | 6 | 0.2 | 0.95 | £34.81 | 5 days | |
| ESR7040150206S4 | 1.5 | 4 | 2.5 | 50 | 4 | 6 | 0.2 | 1.45 | £34.81 | 5 days | |
| ESR7040100103S4 | 1 | 4 | 2 | 50 | 4 | 3 | 0.1 | 0.95 | £34.81 | 5 days | |
| ESR7040100304S4 | 1 | 4 | 2 | 50 | 4 | 4 | 0.3 | 0.95 | £34.81 | 5 days | |
| ESR7040100204S4 | 1 | 4 | 2 | 50 | 4 | 4 | 0.2 | 0.95 | £34.81 | 5 days | |
| ESR7040100203S4 | 1 | 4 | 2 | 50 | 4 | 3 | 0.2 | 0.95 | £34.81 | 5 days | |
| ESR7040150304S4 | 1.5 | 4 | 2.5 | 50 | 4 | 4 | 0.3 | 1.45 | £34.81 | 5 days | |
| ESR7040150306S4 | 1.5 | 4 | 2.5 | 50 | 4 | 6 | 0.3 | 1.45 | £34.81 | 5 days | |
| ESR7040200106S4 | 2 | 4 | 3 | 50 | 4 | 6 | 0.1 | 1.9 | £34.81 | 5 days | |
| ESR7040200108S4 | 2 | 4 | 3 | 50 | 4 | 8 | 0.1 | 1.9 | £34.81 | 5 days | |
| ESR7040200208S4 | 2 | 4 | 3 | 50 | 4 | 8 | 0.2 | 1.9 | £34.81 | 5 days | |
| ESR7040150104S4 | 1.5 | 4 | 2.5 | 50 | 4 | 4 | 0.1 | 1.45 | £34.81 | 5 days | |
| ESR7040200208 | 2 | 4 | 3 | 50 | 6 | 8 | 0.2 | 1.9 | £37.83 | 5 days | |
| ESR7040250106S4 | 2.5 | 4 | 3.5 | 50 | 4 | 6 | 0.1 | 2.4 | £34.81 | 5 days | |
| ESR7040200210 | 2 | 4 | 3 | 50 | 6 | 10 | 0.2 | 1.9 | £37.83 | 5 days | |
| ESR7040200506S4 | 2 | 4 | 3 | 50 | 4 | 6 | 0.5 | 1.9 | £34.81 | 5 days | |
| ESR7040200212 | 2 | 4 | 3 | 50 | 6 | 12 | 0.2 | 1.9 | £40.37 | 5 days | |
| ESR7040200206S4 | 2 | 4 | 3 | 50 | 4 | 6 | 0.2 | 1.9 | £34.81 | 5 days | |
| ESR7040200508S4 | 2 | 4 | 3 | 50 | 4 | 8 | 0.5 | 1.9 | £34.81 | 5 days | |
| ESR7040200306S4 | 2 | 4 | 3 | 50 | 4 | 6 | 0.3 | 1.9 | £34.81 | 5 days | |
| ESR7040300110 | 3 | 4 | 4 | 55 | 6 | 10 | 0.1 | 2.9 | £37.83 | 5 days | |
| ESR7040300210 | 3 | 4 | 4 | 55 | 6 | 10 | 0.2 | 2.9 | £37.83 | 5 days | |
| ESR7040200308S4 | 2 | 4 | 3 | 50 | 4 | 8 | 0.3 | 1.9 | £34.81 | 5 days | |
| ESR7040300112 | 3 | 4 | 4 | 55 | 6 | 12 | 0.1 | 2.9 | £37.83 | 5 days | |
| ESR7040300116 | 3 | 4 | 4 | 55 | 6 | 16 | 0.1 | 2.9 | £37.83 | 5 days | |
| ESR7040300120 | 3 | 4 | 4 | 60 | 6 | 20 | 0.1 | 2.9 | £37.83 | 5 days | |
| ESR7040300208 | 3 | 4 | 4 | 55 | 6 | 8 | 0.2 | 2.9 | £37.83 | 5 days | |
| ESR7040300216 | 3 | 4 | 4 | 55 | 6 | 16 | 0.2 | 2.9 | £37.83 | 5 days | |
| ESR7040300108 | 3 | 4 | 4 | 55 | 6 | 8 | 0.1 | 2.9 | £37.83 | 5 days | |
| ESR7040300212 | 3 | 4 | 4 | 55 | 6 | 12 | 0.2 | 2.9 | £37.83 | 5 days | |
| ESR7040300220 | 3 | 4 | 4 | 60 | 6 | 20 | 0.2 | 2.9 | £37.83 | 5 days | |
| ESR7040300309 | 3 | 4 | 4 | 55 | 6 | 9 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040300312 | 3 | 4 | 4 | 55 | 6 | 12 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040300310 | 3 | 4 | 4 | 55 | 6 | 10 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040300316 | 3 | 4 | 4 | 55 | 6 | 16 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040300508 | 3 | 4 | 4 | 55 | 6 | 8 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040300320 | 3 | 4 | 4 | 60 | 6 | 20 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040300509 | 3 | 4 | 4 | 55 | 6 | 9 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040300512 | 3 | 4 | 4 | 55 | 6 | 12 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040300510 | 3 | 4 | 4 | 55 | 6 | 10 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040300520 | 3 | 4 | 4 | 60 | 6 | 20 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040301008 | 3 | 4 | 4 | 55 | 6 | 8 | 1 | 2.9 | £37.83 | 5 days | |
| ESR7040300516 | 3 | 4 | 4 | 55 | 6 | 16 | 0.5 | 2.9 | £37.83 | 5 days | |
| ESR7040300308 | 3 | 4 | 4 | 55 | 6 | 8 | 0.3 | 2.9 | £37.83 | 5 days | |
| ESR7040301010 | 3 | 4 | 4 | 55 | 6 | 10 | 1 | 2.9 | £37.83 | 5 days | |
| ESR7040301012 | 3 | 4 | 4 | 55 | 6 | 12 | 1 | 2.9 | £37.83 | 5 days | |
| ESR7040301016 | 3 | 4 | 4 | 55 | 6 | 16 | 1 | 2.9 | £37.83 | 5 days | |
| ESR7040400112 | 4 | 4 | 6 | 55 | 6 | 12 | 0.1 | 3.8 | £37.83 | 5 days | |
| ESR7040301020 | 3 | 4 | 4 | 60 | 6 | 20 | 1 | 2.9 | £37.83 | 5 days | |
| ESR7040400110 | 4 | 4 | 6 | 55 | 6 | 10 | 0.1 | 3.8 | £37.83 | 5 days | |
| ESR7040400116 | 4 | 4 | 6 | 55 | 6 | 16 | 0.1 | 3.8 | £37.83 | 5 days | |
| ESR7040400125 | 4 | 4 | 6 | 60 | 6 | 25 | 0.1 | 3.8 | £37.83 | 5 days | |
| ESR7040400120 | 4 | 4 | 6 | 60 | 6 | 20 | 0.1 | 3.8 | £37.83 | 5 days | |
| ESR7040400220 | 4 | 4 | 6 | 60 | 6 | 20 | 0.2 | 3.8 | £37.83 | 5 days | |
| ESR7040400225 | 4 | 4 | 6 | 60 | 6 | 25 | 0.2 | 3.8 | £37.83 | 5 days | |
| ESR7040400210 | 4 | 4 | 6 | 55 | 6 | 10 | 0.2 | 3.8 | £37.83 | 5 days | |
| ESR7040400216 | 4 | 4 | 6 | 55 | 6 | 16 | 0.2 | 3.8 | £37.83 | 5 days | |
| ESR7040400310 | 4 | 4 | 6 | 55 | 6 | 10 | 0.3 | 3.8 | £37.83 | 5 days | |
| ESR7040400312 | 4 | 4 | 6 | 55 | 6 | 12 | 0.3 | 3.8 | £37.83 | 5 days | |
| ESR7040400212 | 4 | 4 | 6 | 55 | 6 | 12 | 0.2 | 3.8 | £37.83 | 5 days | |
| ESR7040400316 | 4 | 4 | 6 | 55 | 6 | 16 | 0.3 | 3.8 | £37.83 | 5 days | |
| ESR7040400325 | 4 | 4 | 6 | 60 | 6 | 25 | 0.3 | 3.8 | £37.83 | 5 days | |
| ESR7040400510 | 4 | 4 | 6 | 55 | 6 | 10 | 0.5 | 3.8 | £15.14 | In Stock | |
| ESR7040400512 | 4 | 4 | 6 | 55 | 6 | 12 | 0.5 | 3.8 | £37.83 | 5 days | |
| ESR7040400520 | 4 | 4 | 6 | 60 | 6 | 20 | 0.5 | 3.8 | £37.83 | 5 days | |
| ESR7040400516 | 4 | 4 | 6 | 55 | 6 | 16 | 0.5 | 3.8 | £37.83 | 5 days | |
| ESR7040400525 | 4 | 4 | 6 | 60 | 6 | 25 | 0.5 | 3.8 | £37.83 | 5 days | |
| ESR7040600220 | 6 | 4 | 9 | 60 | 6 | 20 | 0.2 | 5.8 | £37.83 | 5 days | |
| ESR7040400320 Viewing | 4 | 4 | 6 | 60 | 6 | 20 | 0.3 | 3.8 | £37.83 | 5 days | |
| ESR7040401025 | 4 | 4 | 6 | 60 | 6 | 25 | 1 | 3.8 | £37.83 | 5 days | |
| ESR7040401012 | 4 | 4 | 6 | 55 | 6 | 12 | 1 | 3.8 | £37.83 | 5 days | |
| ESR7040401010 | 4 | 4 | 6 | 55 | 6 | 10 | 1 | 3.8 | £37.83 | 5 days | |
| ESR7040401016 | 4 | 4 | 6 | 55 | 6 | 16 | 1 | 3.8 | £37.83 | 5 days | |
| ESR7040401020 | 4 | 4 | 6 | 60 | 6 | 20 | 1 | 3.8 | £37.83 | 5 days | |
| ESR7040601020 | 6 | 4 | 9 | 60 | 6 | 20 | 1 | 5.8 | £15.14 | In Stock | |
| ESR7040800325 | 8 | 4 | 12 | 60 | 8 | 25 | 0.3 | 7.8 | £46.44 | 5 days | |
| ESR7040600520 | 6 | 4 | 9 | 60 | 6 | 20 | 0.5 | 5.8 | £37.83 | 5 days | |
| ESR7040600320 | 6 | 4 | 9 | 60 | 6 | 20 | 0.3 | 5.8 | £37.83 | 5 days | |
| ESR7040601520 | 6 | 4 | 9 | 60 | 6 | 20 | 1.5 | 5.8 | £37.83 | 5 days | |
| ESR7040602020 | 6 | 4 | 9 | 60 | 6 | 20 | 2 | 5.8 | £37.83 | 5 days | |
| ESR7040800225 | 8 | 4 | 12 | 60 | 8 | 25 | 0.2 | 7.8 | £46.44 | 5 days | |
| ESR7040800525 | 8 | 4 | 12 | 60 | 8 | 25 | 0.5 | 7.8 | £46.44 | 5 days | |
| ESR7040801525 | 8 | 4 | 12 | 60 | 8 | 25 | 1.5 | 7.8 | £46.44 | 5 days | |
| ESR7040801025 | 8 | 4 | 12 | 60 | 8 | 25 | 1 | 7.8 | £46.44 | 5 days | |
| ESR7041001032 | 10 | 4 | 15 | 70 | 10 | 32 | 1 | 9.7 | £64.31 | 5 days | |
| ESR7041000532 | 10 | 4 | 15 | 70 | 10 | 32 | 0.5 | 9.7 | £64.31 | 5 days | |
| ESR7040802025 | 8 | 4 | 12 | 60 | 8 | 25 | 2 | 7.8 | £46.44 | 5 days | |
| ESR7041001532 | 10 | 4 | 15 | 70 | 10 | 32 | 1.5 | 9.7 | £64.31 | 5 days | |
| ESR7041201038 | 12 | 4 | 18 | 80 | 12 | 38 | 1 | 11.7 | £91.60 | 5 days | |
| ESR7041200538 | 12 | 4 | 18 | 80 | 12 | 38 | 0.5 | 11.7 | £91.60 | 5 days | |
| ESR7041000232 | 10 | 4 | 15 | 70 | 10 | 32 | 0.2 | 9.7 | £64.31 | 5 days | |
| ESR7041002032 | 10 | 4 | 15 | 70 | 10 | 32 | 2 | 9.7 | £64.31 | 5 days | |
| ESR7041200338 | 12 | 4 | 18 | 80 | 12 | 38 | 0.3 | 11.7 | £36.64 | In Stock | |
| ESR7041000332 | 10 | 4 | 15 | 70 | 10 | 32 | 0.3 | 9.7 | £64.31 | 5 days | |
| ESR7041202038 | 12 | 4 | 18 | 80 | 12 | 38 | 2 | 11.7 | £91.60 | 5 days | |
| ESR7041201538 | 12 | 4 | 18 | 80 | 12 | 38 | 1.5 | 11.7 | £36.64 | In Stock |
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