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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 5 Flute Variable Helix - 20mm x R1.0
| Cutter Diameter | 20 |
| Number of Flutes | 5 |
| Flute Length | 38 |
| Overall Length | 104 |
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Description
The Widin Carbide Corner Radius End Mill for Stainless & Exotics is a precision milling tool built to handle tough metals with confidence. It features a 20 mm diameter and a 1.0 mm corner radius, delivering precise corner radii and dependable geometry for demanding applications.
Its 5-flute, variable-helix design enhances chip emission and helps achieve a smooth workpiece surface on stainless steels and exotic alloys. The cutting edge is formed from high-hardness carbide for excellent wear resistance, and the rake-angle design is tailored to the workpiece characteristics to support reliable machining results.
- Unequal Index Flutes for Efficient Chip Emission: The unequal flute spacing promotes effective chip evacuation and contributes to a smoother surface finish on challenging materials.
- High-Hardness Carbide Edge for Wear Resistance: A robust cutting edge maintains sharpness through demanding cuts, delivering consistent performance and long-lasting tool life.
- Optimized Corner Radius and Rake Angle for Superior Surface Finish: The 1.0 mm corner radius combined with a purpose-built rake angle yields excellent machining surfaces and reliable results on stainless and exotic workpieces.
Designed to work across a range of milling tasks—from precision pocketing to finishing tight radii—this end mill helps you achieve consistent, high-quality results with confidence. The combination of chip-friendly geometry, durable carbide, and carefully tuned rake angle supports a reliable workflow and reduces the need for rework, making it a dependable choice for professionals and serious hobbyists alike.
Part Numbers
- Protool Part Number
- XR50520100
- 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 Corner Radius End Mill For Stainless & Exotics - 5 Flute Variable Helix (XR505)
View full collection →You are viewing XR50520100. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Corner Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| XR50506050 | 6 | 5 | 13 | 57 | 6 | 0.5 | £23.20 | 5 days | |
| XR50508050 | 8 | 5 | 19 | 63 | 8 | 0.5 | £36.54 | In Stock | |
| XR50510050 | 10 | 5 | 22 | 72 | 10 | 0.5 | £53.70 | 5 days | |
| XR50512075 | 12 | 5 | 26 | 83 | 12 | 0.75 | £81.30 | 5 days | |
| XR50514075 | 14 | 5 | 26 | 83 | 14 | 0.75 | £168.34 | 5 days | |
| XR50514075S16 | 14 | 5 | 26 | 92 | 16 | 0.75 | £240.24 | 5 days | |
| XR50516100 | 16 | 5 | 32 | 92 | 16 | 1 | £240.24 | 5 days | |
| XR50518100 | 18 | 5 | 32 | 92 | 18 | 1 | £345.86 | 5 days | |
| XR50518100S20 | 18 | 5 | 32 | 104 | 20 | 1 | £414.96 | 5 days | |
| XR50520100 Viewing | 20 | 5 | 38 | 104 | 20 | 1 | £414.96 | In Stock | |
| XR50525100 | 25 | 5 | 38 | 104 | 25 | 1 | £663.30 | 5 days |
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