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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix - 4mm x R1.0

SKU:XR5140410

The Widin Carbide Corner Radius End Mill is a precision cutting tool designed for challenging materials like stainless steel and exotic alloys. This model features a 4 mm diameter and a 1.0 mm co... Read more ↓
M
S
Cutter Diameter4
Number of Flutes4
Flute Length10
Overall Length50
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£23.66
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
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 Corner Radius End Mill is a precision cutting tool designed for challenging materials like stainless steel and exotic alloys. This model features a 4 mm diameter and a 1.0 mm corner radius (R1.0), with a 4-flute, variable-helix design that promotes clean cuts and lasting edge life. It’s ideal for engineers, machinists, fabricators, and dedicated hobbyists who need reliable radii in tight corners and consistent surface finishes.

Designed to reduce vibration and improve surface finish, the unequal index flutes optimize chip emission while maintaining stability under load. The high-hardness carbide edge delivers excellent wear resistance, helping the tool hold its edge through tough metals. The geometry is tuned for stainless and exotic materials, with a precise 1.0 mm corner radius to produce smooth, repeatable radii in your workpiece.

  • Unequal Index Flutes for Smooth Finish: The staggered flute arrangement enhances chip evacuation and reduces cutting forces, delivering a cleaner surface on stainless and exotic alloys.
  • Durable Carbide Edge with High Wear Resistance: Hardened cutting edges resist wear in tough metals, extending tool life and reducing replacement frequency in demanding applications.
  • 4 Flute Design with Variable Helix and 1.0 mm Radius: Four cutting edges plus a variable helix provide efficient material removal with reduced vibration, while the 1.0 mm corner radius ensures precise, repeatable radii on hard alloys.

This end mill helps you streamline workflows: faster, more predictable cuts mean less rework and shorter cycle times, while lasting tool life reduces downtime and maintenance. With reliable radii and stable performance in stainless and exotic materials, it supports accurate, consistent results from setup through finishing passes, making it a dependable choice for professional shops and serious hobbyists alike.

Part Numbers

Protool Part Number
XR5140410
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 Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix (XR514)

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You are viewing XR5140410. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterCorner RadiusPriceStock Order
XR5140201 2454540.1£26.40 In Stock
XR5140202 2454540.2£26.40 5 days
XR5140302 3485060.2£23.66 In Stock
XR5140303 3485060.3£23.66 In Stock
XR5140305 3485060.5£23.66 In Stock
XR5140403 44105060.3£23.66 In Stock
XR5140405 44105060.5£23.66 In Stock
XR5140410 Viewing44105061£23.66 5 days
XR5140505 54135060.5£26.34 In Stock
XR5140510 54135061£26.34 In Stock
XR5140605 64135060.5£26.34 In Stock
XR5140610 64135061£26.34 In Stock
XR5140615 64135061.5£26.34 In Stock
XR5140805 84196080.5£35.52 In Stock
XR5140810 84196081£35.52 In Stock
XR5140815 84196081.5£35.52 In Stock
XR5140820 84196082£35.52 In Stock
XR5141005 1042270100.5£52.20 5 days
XR5141010 1042270101£52.20 In Stock
XR5141015 1042270101.5£52.20 In Stock
XR5141020 1042270102£52.20 In Stock
XR5141205 1242675120.5£79.02 5 days
XR5141210 1242675121£79.04 In Stock
XR5141215 1242675121.5£79.04 In Stock
XR5141220 1242675122£79.04 5 days
XR5141230 1242675123£79.04 In Stock
XR5141615 1643290161.5£233.56 In Stock
XR5141620 1643290162£233.56 In Stock
XR5141630 1643290163£233.56 In Stock
XR5142030 20438100203£403.40 In Stock
XR5142040 20438100204£423.58 5 days
XR5142050 20438100205£444.76 In Stock

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