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Widin Carbide Square End Mill For Mold & Die - 4 Flute Long Length - 4mm x 20mm x100mm
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 20 |
| Overall Length | 100 |
Learn more about Klarna
Description
The Widin carbide square end mill is a four-flute, long-length cutting tool designed for mold and die machining. With a 4 mm cutting diameter, a 20 mm flute length, and a 100 mm overall length, it reaches deep cavities and tight features while delivering clean, precise cuts. The square-end geometry and carbide construction make it a dependable choice for engineers, machinists, and hobbyists who demand consistent performance on demanding materials.
This WE524 end mill offers a broad cutting diameter range from 1.0 mm to 20.0 mm, a diameter tolerance of +0/−0.03 mm, premium carbide for wear resistance, and a durable W coating that extends tool life and stabilizes machining. It is particularly well-suited for mold and die work on materials below 55 HRc, including pre-hardened steel, alloy steel, and carbon steel.
- Broad cutting diameter range (1.0–20.0 mm): Enables flexibility to tackle a wide variety of workpieces and cavity sizes with a single tool family.
- Diameter tolerance +0/−0.03 mm: Ensures precise, repeatable dimensions for consistent results in mold and die cavities.
- Long-length, four-flute design with W coating: Provides extended reach and efficient chip evacuation, while the durable coating extends tool life and stabilizes cutting in challenging materials.
With its long reach and robust construction, this end mill helps you complete deep cavities and complex molds with fewer passes and consistent finishes. The combination of premium carbide, precise diameter control, and a wear‑resistant coating translates into reliable performance, reduced downtime, and improved productivity across mold and die projects.
Part Numbers
- Protool Part Number
- UE52404020S4
- Brand
- Widin
- 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: Widin Carbide Square End Mill For Mold & Die - 4 Flute Long Length (WE524)
View full collection →You are viewing UE52404020S4. 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 |
|---|---|---|---|---|---|---|---|---|
| UE52401003 | 1 | 4 | 3 | 60 | 6 | £24.30 | 5 days | |
| UE52401004 | 1 | 4 | 4 | 60 | 6 | £24.30 | 5 days | |
| UE52401005 | 1 | 4 | 5 | 60 | 6 | £24.30 | 5 days | |
| UE52401007 | 1 | 4 | 7 | 60 | 6 | £25.53 | 5 days | |
| UE52401006 | 1 | 4 | 6 | 60 | 6 | £24.30 | 5 days | |
| UE52401008 | 1 | 4 | 8 | 60 | 6 | £26.75 | 5 days | |
| UE52401010 | 1 | 4 | 10 | 60 | 6 | £29.20 | 5 days | |
| UE52401206 | 1.2 | 4 | 6 | 60 | 6 | £24.30 | 5 days | |
| UE52401204 | 1.2 | 4 | 4 | 60 | 6 | £24.30 | 5 days | |
| UE52401012 | 1 | 4 | 12 | 60 | 6 | £31.53 | 5 days | |
| UE52401208 | 1.2 | 4 | 8 | 60 | 6 | £25.53 | 5 days | |
| UE52401210 | 1.2 | 4 | 10 | 60 | 6 | £26.75 | 5 days | |
| UE52401506 | 1.5 | 4 | 6 | 60 | 6 | £24.30 | 5 days | |
| UE52401212 | 1.2 | 4 | 12 | 60 | 6 | £29.20 | 5 days | |
| UE52401508 | 1.5 | 4 | 8 | 60 | 6 | £25.53 | 5 days | |
| UE52401510 | 1.5 | 4 | 10 | 60 | 6 | £26.75 | 5 days | |
| UE52401512 | 1.5 | 4 | 12 | 60 | 6 | £29.20 | 5 days | |
| UE52401514 | 1.5 | 4 | 14 | 60 | 6 | £31.53 | 5 days | |
| UE52401516 | 1.5 | 4 | 16 | 60 | 6 | £32.75 | In Stock | |
| UE52402010 | 2 | 4 | 10 | 60 | 6 | £25.53 | 5 days | |
| UE52402008 | 2 | 4 | 8 | 60 | 6 | £24.30 | 5 days | |
| UE52402014 | 2 | 4 | 14 | 60 | 6 | £29.20 | 5 days | |
| UE52402012 | 2 | 4 | 12 | 60 | 6 | £26.75 | 5 days | |
| UE52402510 | 2.5 | 4 | 10 | 60 | 6 | £24.30 | 5 days | |
| UE52402512 | 2.5 | 4 | 12 | 60 | 6 | £24.30 | 5 days | |
| UE52402016 | 2 | 4 | 16 | 60 | 6 | £29.20 | 5 days | |
| UE52402516 | 2.5 | 4 | 16 | 60 | 6 | £26.75 | 5 days | |
| UE52402520 | 2.5 | 4 | 20 | 60 | 6 | £29.20 | 5 days | |
| UE52402526 | 2.5 | 4 | 26 | 60 | 6 | £34.13 | In Stock | |
| UE52403010 | 3 | 4 | 10 | 70 | 6 | £24.55 | 5 days | |
| UE52403014 | 3 | 4 | 14 | 70 | 6 | £25.80 | 5 days | |
| UE52403012 | 3 | 4 | 12 | 70 | 6 | £24.55 | 5 days | |
| UE52403016 | 3 | 4 | 16 | 70 | 6 | £26.88 | 5 days | |
| UE52403016S3 | 3 | 4 | 16 | 100 | 3 | £24.83 | 5 days | |
| UE52403020 | 3 | 4 | 20 | 70 | 6 | £29.33 | 5 days | |
| UE52403026 | 3 | 4 | 26 | 70 | 6 | £33.15 | In Stock | |
| UE52403030 | 3 | 4 | 30 | 70 | 6 | £35.48 | In Stock | |
| UE52404012 | 4 | 4 | 12 | 70 | 6 | £24.55 | 5 days | |
| UE52404016 | 4 | 4 | 16 | 70 | 6 | £25.80 | 5 days | |
| UE52404020 | 4 | 4 | 20 | 70 | 6 | £28.10 | 5 days | |
| UE52404020S4 Viewing | 4 | 4 | 20 | 100 | 4 | £25.95 | 5 days | |
| UE52404026 | 4 | 4 | 26 | 70 | 6 | £30.70 | 5 days | |
| UE52404030 | 4 | 4 | 30 | 70 | 6 | £33.15 | 5 days | |
| UE52405025 | 5 | 4 | 25 | 70 | 6 | £24.98 | 5 days | |
| UE52405020 | 5 | 4 | 20 | 70 | 6 | £24.55 | 5 days | |
| UE52405030 | 5 | 4 | 30 | 80 | 6 | £27.45 | 5 days | |
| UE52405025100 | 5 | 4 | 25 | 100 | 6 | £27.98 | 5 days | |
| UE52405040 | 5 | 4 | 40 | 100 | 6 | £33.15 | 5 days | |
| UE52406015 | 6 | 4 | 45 | 60 | 6 | £24.30 | 5 days | |
| UE52406015080 | 6 | 4 | 45 | 80 | 6 | £25.53 | 5 days | |
| UE52405035 | 5 | 4 | 35 | 90 | 6 | £30.45 | 5 days | |
| UE52406020090 | 6 | 4 | 20 | 90 | 6 | £27.70 | 5 days | |
| UE52406020 | 6 | 4 | 20 | 70 | 6 | £24.55 | 5 days | |
| UE52406025 | 6 | 4 | 25 | 75 | 6 | £25.53 | 5 days | |
| UE52406030 | 6 | 4 | 30 | 80 | 6 | £27.45 | 5 days | |
| UE52406030100 | 6 | 4 | 30 | 100 | 6 | £29.75 | 5 days | |
| UE52406030150 | 6 | 4 | 30 | 150 | 6 | £39.70 | 5 days | |
| UE52406035 | 6 | 4 | 35 | 90 | 6 | £30.45 | 5 days | |
| UE52406040 | 6 | 4 | 40 | 90 | 6 | £31.93 | In Stock | |
| UE52406040120 | 6 | 4 | 40 | 120 | 6 | £39.45 | 5 days | |
| UE52406045 | 6 | 4 | 45 | 150 | 6 | £46.95 | 5 days | |
| UE52408025 | 8 | 4 | 25 | 80 | 8 | £45.43 | 5 days | |
| UE52408030 | 8 | 4 | 30 | 80 | 8 | £45.43 | 5 days | |
| UE52408030100 | 8 | 4 | 30 | 100 | 8 | £49.13 | In Stock | |
| UE52408040 | 8 | 4 | 40 | 90 | 8 | £54.30 | 5 days | |
| UE52408040150 | 8 | 4 | 40 | 150 | 8 | £68.20 | 5 days | |
| UE52408035 | 8 | 4 | 35 | 90 | 8 | £50.75 | In Stock | |
| UE52408040120 | 8 | 4 | 40 | 120 | 8 | £60.80 | 5 days | |
| UE52408045 | 8 | 4 | 45 | 100 | 8 | £60.08 | 5 days | |
| UE52408050 | 8 | 4 | 50 | 100 | 8 | £61.40 | 5 days | |
| UE52408050150 | 8 | 4 | 50 | 150 | 8 | £73.55 | In Stock | |
| UE524100100 | 10 | 4 | 30 | 100 | 10 | £67.70 | 5 days | |
| UE52410030 | 10 | 4 | 30 | 80 | 10 | £62.63 | 5 days | |
| UE52410035 | 10 | 4 | 35 | 90 | 10 | £65.15 | 5 days | |
| UE52410040 | 10 | 4 | 40 | 90 | 10 | £69.90 | In Stock | |
| UE52410040120 | 10 | 4 | 40 | 120 | 10 | £78.45 | 5 days | |
| UE52410045 | 10 | 4 | 45 | 100 | 10 | £75.78 | 5 days | |
| UE52410050150 | 10 | 4 | 50 | 150 | 10 | £96.70 | 5 days | |
| UE52410050200 | 10 | 4 | 50 | 200 | 10 | £116.05 | 5 days | |
| UE52410050 | 10 | 4 | 50 | 100 | 10 | £80.55 | 5 days | |
| UE52410055 | 10 | 4 | 55 | 150 | 10 | £100.98 | 5 days | |
| UE52410060 | 10 | 4 | 60 | 110 | 10 | £91.15 | In Stock | |
| UE52410060200 | 10 | 4 | 60 | 200 | 10 | £124.30 | 5 days | |
| UE52412035 | 12 | 4 | 35 | 90 | 12 | £92.98 | 5 days | |
| UE52412040 | 12 | 4 | 40 | 100 | 12 | £96.73 | 5 days | |
| UE52412040120 | 12 | 4 | 40 | 120 | 12 | £104.45 | 5 days | |
| UE52412045 | 12 | 4 | 45 | 130 | 12 | £112.20 | 5 days | |
| UE52412050 | 12 | 4 | 50 | 100 | 12 | £108.23 | 5 days | |
| UE52412050150 | 12 | 4 | 50 | 150 | 12 | £129.95 | 5 days | |
| UE52412055 | 12 | 4 | 55 | 110 | 12 | £115.43 | 5 days | |
| UE52412060 | 12 | 4 | 60 | 110 | 12 | £123.13 | 5 days | |
| UE52412060150 | 12 | 4 | 60 | 150 | 12 | £142.53 | 5 days | |
| UE52412060200 | 12 | 4 | 60 | 200 | 12 | £171.43 | In Stock | |
| UE52412065 | 12 | 4 | 65 | 150 | 12 | £146.45 | 5 days | |
| UE52412070 | 12 | 4 | 70 | 120 | 12 | £135.35 | 5 days | |
| UE52412070200 | 12 | 4 | 70 | 200 | 12 | £173.38 | 5 days | |
| UE52414050 | 14 | 4 | 50 | 110 | 16 | £313.73 | 5 days | |
| UE52414060 | 14 | 4 | 60 | 150 | 16 | £363.63 | 5 days | |
| UE524160120 | 16 | 4 | 120 | 250 | 16 | £806.85 | 5 days | |
| UE524160110 | 16 | 4 | 110 | 200 | 16 | £611.10 | 5 days | |
| UE52416040 | 16 | 4 | 40 | 150 | 16 | £363.63 | 5 days | |
| UE52416050 | 16 | 4 | 50 | 110 | 16 | £313.73 | 5 days | |
| UE52416050150 | 16 | 4 | 50 | 150 | 16 | £363.63 | 5 days | |
| UE52416070 | 16 | 4 | 70 | 130 | 16 | £387.10 | 5 days | |
| UE52416060 | 16 | 4 | 60 | 120 | 16 | £350.30 | 5 days | |
| UE52416070150 | 16 | 4 | 70 | 150 | 16 | £418.13 | 5 days | |
| UE52416070200 | 16 | 4 | 70 | 200 | 16 | £501.63 | 5 days | |
| UE52416080 | 16 | 4 | 80 | 150 | 16 | £436.33 | 5 days | |
| UE52416090 | 16 | 4 | 90 | 150 | 16 | £472.88 | 5 days | |
| UE524180100 | 18 | 4 | 100 | 200 | 20 | £792.25 | 5 days | |
| UE52418070 | 18 | 4 | 70 | 130 | 20 | £546.25 | 5 days | |
| UE52418050 | 18 | 4 | 50 | 120 | 20 | £500.25 | 5 days | |
| UE524200110 | 20 | 4 | 110 | 200 | 20 | £839.00 | 5 days | |
| UE524200120 | 20 | 4 | 120 | 250 | 20 | £1,018.00 | 5 days | |
| UE52420050 | 20 | 4 | 50 | 110 | 20 | £482.25 | 5 days | |
| UE52420060 | 20 | 4 | 60 | 130 | 20 | £517.75 | 5 days | |
| UE52420050150 | 20 | 4 | 50 | 150 | 20 | £559.50 | 5 days | |
| UE52420070 | 20 | 4 | 70 | 130 | 20 | £546.25 | 5 days | |
| UE52420090 | 20 | 4 | 90 | 150 | 20 | £643.25 | 5 days | |
| UE52420090200 | 20 | 4 | 90 | 200 | 20 | £772.00 | 5 days | |
| UE52420080 | 20 | 4 | 80 | 150 | 20 | £615.25 | 5 days | |
| UE524220110 | 22 | 4 | 110 | 200 | 20 | £938.50 | 5 days | |
| UE524250110 | 25 | 4 | 110 | 200 | 25 | £1,088.50 | 5 days | |
| UE52422075 | 22 | 4 | 75 | 150 | 20 | £727.50 | 5 days | |
| UE524250120 | 25 | 4 | 120 | 250 | 25 | £1,327.75 | 5 days | |
| UE52425070 | 25 | 4 | 70 | 150 | 25 | £824.50 | 5 days | |
| UE52425090 | 25 | 4 | 90 | 150 | 25 | £824.50 | 5 days |
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