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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix - 16mm x R1.5
| Cutter Diameter | 16 |
| Number of Flutes | 4 |
| Flute Length | 32 |
| Overall Length | 90 |
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Description
Widin Carbide Corner Radius End Mill is a precision cutting tool designed for stainless steel and other exotic materials. With a 16 mm diameter and an R1.5 corner radius, this 4-flute end mill uses a variable-helix geometry to deliver clean cuts and reliable performance in demanding machining tasks.
Suitable for engineers, shop floor technicians, and hobbyists, it helps achieve a smooth surface finish and efficient chip evacuation across a wide range of applications. Available with various corner radius sizes to fit different fillets.
- Unequal index flutes for improved chip emission and surface finish: The unequal spacing of the flutes promotes effective chip evacuation and helps produce a smoother workpiece finish, reducing finishing passes and saving time.
- Variable-helix 4-flute design for smoother cutting and wear resistance: The variable helix reduces chatter and vibration, delivering consistent cutting action in stainless and exotic materials while maintaining sharp, hard cutting edges for long tool life.
- Corner radius options to match fillet needs: Available in various corner radii to fit your design requirements, enabling stronger edge performance and precise fillets in complex parts.
The Widin Corner Radius End Mill helps you streamline your workflow by delivering reliable, consistent results across stainless steel and exotic materials. Its chip-emission efficiency, robust carbide cutting edge, and flexible corner radius options reduce downtime, improve surface quality, and extend tool life—so you can complete projects faster with confidence on demanding jobs.
Part Numbers
- Protool Part Number
- XR5141615
- 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 XR5141615. 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 | 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 Viewing | 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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