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Widin Carbide End Mill - 4 Flute Square Edge Long Neck 2mm x 4mm

SKU:ESLNS4020-4

The Widin Carbide End Mill is a precision cutting tool built for demanding, high-hardness machining. With a 2 mm cutting diameter and a 4 mm long neck, this 4-flute square-edge end mill delivers ... Read more ↓
P
H
Cutter Diameter2
Number of Flutes4
Flute Length3
Overall Length50
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£26.38
Prices shown ex. VAT
In Stock— only 1 left
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Widin Carbide End Mill is a precision cutting tool built for demanding, high-hardness machining. With a 2 mm cutting diameter and a 4 mm long neck, this 4-flute square-edge end mill delivers reliable performance for engineers, machinists, and hobbyists working on materials up to HRc70. It’s designed to produce clean, accurate cuts where depth and reach matter most.

The tool’s extended neck provides interference-length clearance for draft angles, letting you reach deep features, pockets, and undercuts without interference. Crafted from premium carbide and enhanced with an advanced coating, it supports dry cutting and high-speed operation, delivering improved heat resistance and wear life for consistent results.

  • Long-neck geometry for draft-angle access: The extended neck length offers interference-length clearance, enabling stable, accurate cuts in deep features and angled workpieces without rubbing or chatter.
  • Dry and high-speed cutting with enhanced durability: A specially developed raw material and advanced coating enable dry cutting and high-speed performance with superior heat and wear resistance, even on HRc70 materials.
  • 4-flute square-edge for precise finishes: The 4-flute design paired with square-edge geometry ensures efficient chip evacuation and smooth, consistent surface finishes across hard metals, reducing rework and improving first-pass accuracy.

This end mill is a dependable choice for challenging machining tasks, helping to streamline workflows, minimize tooling changes, and achieve high-quality surface finishes on tough materials. With its long neck for reach, rugged carbide core, and performance-driven coating, you can trust it to deliver reliable results in demanding applications.

Part Numbers

Protool Part Number
ESLNS4020-4
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 - 4 Flute Square Edge Long Neck (ZSLNS40)

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You are viewing ESLNS4020-4. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterReachNeck DiameterPriceStock Order
ESLNS4010-4 141.550440.96£28.30 In Stock
ESLNS4010-6 141.550460.96£28.30 5 days
ESLNS4010-8 141.550480.96£28.30 5 days
ESLNS4010-10 141.5504100.96£28.30 5 days
ESLNS4015-4 1.542.2550441.44£26.38 5 days
ESLNS4015-6 1.542.2550461.44£28.30 5 days
ESLNS4015-8 1.542.2550481.44£28.30 5 days
ESLNS4015-10 1.542.25504101.44£28.30 In Stock
ESLNS4015-12 1.542.25554121.44£28.30 In Stock
ESLNS4015-14 1.542.25554141.44£28.30 5 days
ESLNS4015-16 1.542.25554161.44£28.30 5 days
ESLNS4015-18 1.542.25604181.44£30.70 5 days
ESLNS4015-20 1.542.25604201.44£30.70 5 days
ESLNS4015-25 1.542.25604251.44£31.68 5 days
ESLNS4020-4 Viewing24350441.92£26.38 In Stock
ESLNS4020-6 24350461.92£26.38 In Stock
ESLNS4020-8 24350481.92£28.30 In Stock
ESLNS4020-10 243504101.92£28.30 In Stock
ESLNS4020-12 243554121.92£28.30 5 days
ESLNS4020-14 243554141.92£28.30 5 days
ESLNS4020-16 243554161.92£28.30 5 days
ESLNS4020-18 243604181.92£28.30 In Stock
ESLNS4020-20 243604201.92£28.30 5 days
ESLNS4020-25 243654251.92£30.70 5 days
ESLNS4020-30 243704301.92£31.68 In Stock
ESLNS4025-8 2.543.7550482.4£28.30 In Stock
ESLNS4025-10 2.543.75504102.4£28.30 In Stock
ESLNS4025-12 2.543.75554122.4£28.30 In Stock
ESLNS4025-14 2.543.75554142.4£28.30 In Stock
ESLNS4025-16 2.543.75554162.4£28.30 5 days
ESLNS4025-18 2.543.75604182.4£28.30 In Stock
ESLNS4025-20 2.543.75604202.4£28.30 In Stock
ESLNS4025-25 2.543.75654252.4£30.70 In Stock
ESLNS4025-30 2.543.75704302.4£31.68 In Stock
ESLNS4030-8 344.555682.88£28.65 In Stock
ESLNS4030-10 344.5556102.88£32.75 In Stock
ESLNS4030-12 344.5606122.88£32.75 In Stock
ESLNS4030-14 344.5606142.88£32.75 In Stock
ESLNS4030-16 344.5606162.88£32.75 In Stock
ESLNS4030-18 344.5606182.88£32.75 5 days
ESLNS4030-20 344.5656202.88£33.78 In Stock
ESLNS4030-25 344.5706252.88£33.78 5 days
ESLNS4030-30 344.5756302.88£33.78 5 days
ESLNS4030-35 344.5806352.88£35.83 5 days
ESLNS4030-40 344.5906402.88£38.88 In Stock
ESLNS4040-12 446606123.85£32.75 5 days
ESLNS4040-16 446606163.85£32.75 5 days
ESLNS4040-20 446706203.85£33.78 5 days
ESLNS4040-25 446706253.85£33.78 5 days
ESLNS4040-30 446806303.85£35.83 In Stock
ESLNS4050-30 547.5706304.85£35.83 5 days
ESLNS4040-35 446806353.85£35.83 5 days
ESLNS4040-40 446906403.85£38.88 5 days
ESLNS4040-45 446906453.85£38.88 5 days
ESLNS4040-50 4461006503.85£45.05 5 days
ESLNS4050-16 547.5606164.85£32.75 In Stock
ESLNS4050-20 547.5606204.85£33.78 5 days
ESLNS4050-25 547.5706254.85£33.78 5 days
ESLNS4050-35 547.5806354.85£36.85 In Stock
ESLNS4050-40 547.5906404.85£38.88 In Stock
ESLNS4050-50 547.51006504.85£45.05 In Stock

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