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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix - 4mm x R1.0
| Cutter Diameter | 4 |
| Number of Flutes | 4 |
| Flute Length | 10 |
| Overall Length | 50 |
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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.
Full Range: Widin Carbide Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix (XR514)
View full collection →You are viewing XR5140410. 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 |
|---|---|---|---|---|---|---|---|---|---|
| XR5140201 | 2 | 4 | 5 | 45 | 4 | 0.1 | £26.40 | In Stock | |
| XR5140202 | 2 | 4 | 5 | 45 | 4 | 0.2 | £26.40 | 5 days | |
| XR5140302 | 3 | 4 | 8 | 50 | 6 | 0.2 | £23.66 | In Stock | |
| XR5140303 | 3 | 4 | 8 | 50 | 6 | 0.3 | £23.66 | In Stock | |
| XR5140305 | 3 | 4 | 8 | 50 | 6 | 0.5 | £23.66 | In Stock | |
| XR5140403 | 4 | 4 | 10 | 50 | 6 | 0.3 | £23.66 | In Stock | |
| XR5140405 | 4 | 4 | 10 | 50 | 6 | 0.5 | £23.66 | In Stock | |
| XR5140410 Viewing | 4 | 4 | 10 | 50 | 6 | 1 | £23.66 | 5 days | |
| XR5140505 | 5 | 4 | 13 | 50 | 6 | 0.5 | £26.34 | In Stock | |
| XR5140510 | 5 | 4 | 13 | 50 | 6 | 1 | £26.34 | In Stock | |
| XR5140605 | 6 | 4 | 13 | 50 | 6 | 0.5 | £26.34 | In Stock | |
| XR5140610 | 6 | 4 | 13 | 50 | 6 | 1 | £26.34 | In Stock | |
| XR5140615 | 6 | 4 | 13 | 50 | 6 | 1.5 | £26.34 | In Stock | |
| XR5140805 | 8 | 4 | 19 | 60 | 8 | 0.5 | £35.52 | In Stock | |
| XR5140810 | 8 | 4 | 19 | 60 | 8 | 1 | £35.52 | In Stock | |
| XR5140815 | 8 | 4 | 19 | 60 | 8 | 1.5 | £35.52 | In Stock | |
| XR5140820 | 8 | 4 | 19 | 60 | 8 | 2 | £35.52 | In Stock | |
| XR5141005 | 10 | 4 | 22 | 70 | 10 | 0.5 | £52.20 | 5 days | |
| XR5141010 | 10 | 4 | 22 | 70 | 10 | 1 | £52.20 | In Stock | |
| XR5141015 | 10 | 4 | 22 | 70 | 10 | 1.5 | £52.20 | In Stock | |
| XR5141020 | 10 | 4 | 22 | 70 | 10 | 2 | £52.20 | In Stock | |
| XR5141205 | 12 | 4 | 26 | 75 | 12 | 0.5 | £79.02 | 5 days | |
| XR5141210 | 12 | 4 | 26 | 75 | 12 | 1 | £79.04 | In Stock | |
| XR5141215 | 12 | 4 | 26 | 75 | 12 | 1.5 | £79.04 | In Stock | |
| XR5141220 | 12 | 4 | 26 | 75 | 12 | 2 | £79.04 | 5 days | |
| XR5141230 | 12 | 4 | 26 | 75 | 12 | 3 | £79.04 | In Stock | |
| XR5141615 | 16 | 4 | 32 | 90 | 16 | 1.5 | £233.56 | In Stock | |
| XR5141620 | 16 | 4 | 32 | 90 | 16 | 2 | £233.56 | In Stock | |
| XR5141630 | 16 | 4 | 32 | 90 | 16 | 3 | £233.56 | In Stock | |
| XR5142030 | 20 | 4 | 38 | 100 | 20 | 3 | £403.40 | In Stock | |
| XR5142040 | 20 | 4 | 38 | 100 | 20 | 4 | £423.58 | 5 days | |
| XR5142050 | 20 | 4 | 38 | 100 | 20 | 5 | £444.76 | In Stock |
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