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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 5 Flute Variable Helix - 16mm x R1.0

SKU:XR50516100

The Widin Carbide Corner Radius End Mill is engineered for challenging stainless steel and exotic alloy applications. With a 16 mm diameter and a 1.0 mm corner radius, this 5-flute end mill deliv... Read more ↓
M
S
Cutter Diameter16
Number of Flutes5
Flute Length32
Overall Length92
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£240.24
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 Corner Radius End Mill is engineered for challenging stainless steel and exotic alloy applications. With a 16 mm diameter and a 1.0 mm corner radius, this 5-flute end mill delivers precise contouring, clean corners, and reliable performance even in tough materials. The unequal index flute design promotes smooth chip evacuation and minimizes built-up edge, helping you achieve a consistent surface finish across parts. It's built on a carbide cutting edge with high hardness for excellent wear resistance, so you can rely on longer tool life in demanding jobs.

  • Unequal index flute geometry: Improves chip emission and reduces heat concentration, producing smoother surfaces on stainless and exotic alloys.
  • 5-Flute carbide with R1.0 corner radius: Durable cutting edge provides efficient material removal while preserving precise corners for accurate pockets and profiles.
  • Variable-helix design with optimized rake angle: Minimizes vibration and chatter, delivering a smoother cut and better surface finish on tough workpieces.

Whether you're roughing pockets, finishing contours, or profiling complex geometries, this end mill helps you maintain accuracy and surface quality across parts. The carbide cutting edge, combined with the corner radius and flute geometry, supports longer tool life, fewer re-works, and more reliable results in stainless and exotic materials.

Part Numbers

Protool Part Number
XR50516100
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 - 5 Flute Variable Helix (XR505)

View full collection →

You are viewing XR50516100. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterCorner RadiusPriceStock Order
XR50506050 65135760.5£23.20 5 days
XR50508050 85196380.5£36.54 In Stock
XR50510050 1052272100.5£53.70 5 days
XR50512075 1252683120.75£81.30 5 days
XR50514075 1452683140.75£168.34 5 days
XR50514075S16 1452692160.75£240.24 5 days
XR50516100 Viewing1653292161£240.24 5 days
XR50518100 1853292181£345.86 5 days
XR50518100S20 18532104201£414.96 5 days
XR50520100 20538104201£414.96 In Stock
XR50525100 25538104251£663.30 5 days

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