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Widin Carbide End Mill For Mold & Die - 4 Flute Ball Nose - 4mm

SKU:UB504040

The Widin Carbide End Mill for Mold & Die is a 4-flute ball-nose cutter with a 4 mm diameter, designed for precise contouring and smooth finishes on mold components. Built from hard-wearing c... Read more ↓
P
K
Cutter Diameter4
Number of Flutes4
Flute Length4
Overall Length70
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£32.48
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
Klarna
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Widin Carbide End Mill for Mold & Die is a 4-flute ball-nose cutter with a 4 mm diameter, designed for precise contouring and smooth finishes on mold components. Built from hard-wearing carbide and optimized for demanding high-speed machining, it delivers efficient material removal and reliable performance for engineers, machinists, and serious hobbyists alike.

  • 4-Flute Design for Efficient Cutting: The four-flute geometry balances aggressive chip removal with strong rigidity, enabling higher feed rates and cleaner profiles across mold and die work.
  • Optimized Rake Angle for Durability: A carefully tuned rake angle creates a robust cutting edge that stays sharper longer, improving longevity and consistent cut quality in tough materials.
  • Centre Match Type 3 for Superior Finishes at High Speeds: The centre match design supports smooth, precise milling at high speeds, delivering excellent surface finishes with minimal secondary finishing.

This end mill helps you finish parts faster with fewer passes, maintain tight tolerances, and reduce downtime due to tool wear. Its carbide construction and optimized geometry offer reliable, repeatable performance and smooth surface finishes across challenging mold and die applications, making it a trusted choice for professionals who value precision and efficiency.

Part Numbers

Protool Part Number
UB504040
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Widin Carbide End Mill For Mold & Die - 4 Flute Ball Nose (WB504)

View full collection →

You are viewing UB504040. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterRadiusPriceStock Order
UB504010 1415060.5£30.15 5 days
UB504015 1.541.55060.75£30.15 In Stock
UB504020 2425061£30.15 5 days
UB504030 3436061.5£32.48 5 days
UB504040 Viewing4447062£32.48 5 days
UB504050 5458062.5£35.20 5 days
UB504060 6469063£35.20 In Stock
UB504100 10410100105£84.80 5 days
UB504080 84810084£61.40 In Stock
UB504120 12412110126£131.93 5 days

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