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Widin Carbide Corner Radius End Mill For Stainless & Exotics - 4 Flute Variable Helix - 16mm x R0.3
| Cutter Diameter | 16 |
| Number of Flutes | 4 |
| Flute Length | 32 |
| Overall Length | 90 |
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Description
The Widin Carbide Corner Radius End Mill is a precision cutting tool built for stainless steels and exotic alloys. With a 16 mm diameter and a 0.3 mm corner radius, this 4-flute end mill delivers clean, consistent rounded corners and controlled material removal for finishing and profiling tasks. Its robust carbide construction and specialized geometry are designed to handle demanding applications without sacrificing surface quality.
- Unequal index flutes for efficient chip emission: Optimizes chip flow and reduces heat buildup, helping you achieve smoother finishes and longer tool life in hard-to-machine materials.
- 4-flute configuration with variable helix: Balances aggressive material removal with reduced vibration, delivering stable cuts and better surface quality across a range of feeds and depths.
- High-hardness carbide edge for wear resistance: Maintains a sharp cutting edge longer when machining stainless and exotic alloys, reducing replans and rework over time.
Designed to integrate seamlessly into existing setups, this end mill supports efficient corner radii, pocketing, and profiling work. The combination of a precise 0.3 mm radius, durable carbide edge, and chip-friendly flute geometry helps you complete sensitive jobs faster, with repeatable results and less downtime.
Part Numbers
- Protool Part Number
- XR504160
- 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 (XR504)
View full collection →You are viewing XR504160. 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 |
|---|---|---|---|---|---|---|---|---|---|
| XR504020 | 2 | 4 | 5 | 45 | 4 | 0.1 | £26.40 | In Stock | |
| XR504030 | 3 | 4 | 8 | 50 | 6 | 0.1 | £22.54 | In Stock | |
| XR504040 | 4 | 4 | 11 | 50 | 6 | 0.2 | £22.54 | In Stock | |
| XR504050 | 5 | 4 | 13 | 50 | 6 | 0.2 | £22.54 | In Stock | |
| XR504060 | 6 | 4 | 13 | 50 | 6 | 0.2 | £22.54 | 5 days | |
| XR504070 | 7 | 4 | 16 | 60 | 8 | 0.2 | £33.84 | In Stock | |
| XR504080 | 8 | 4 | 19 | 60 | 8 | 0.2 | £33.84 | In Stock | |
| XR504090 | 9 | 4 | 19 | 70 | 10 | 0.2 | £49.72 | In Stock | |
| XR504100 | 10 | 4 | 22 | 70 | 10 | 0.3 | £49.72 | 5 days | |
| XR504110 | 11 | 4 | 22 | 75 | 12 | 0.3 | £75.26 | 5 days | |
| XR504120 | 12 | 4 | 26 | 75 | 12 | 0.3 | £75.26 | In Stock | |
| XR504130 | 13 | 4 | 26 | 80 | 12 | 0.3 | £86.56 | 5 days | |
| XR504140 | 14 | 4 | 26 | 80 | 14 | 0.3 | £155.86 | 5 days | |
| XR504160 Viewing | 16 | 4 | 32 | 90 | 16 | 0.3 | £222.44 | In Stock | |
| XR504180 | 18 | 4 | 32 | 100 | 18 | 0.3 | £341.96 | 5 days | |
| XR504200 | 20 | 4 | 38 | 100 | 20 | 0.3 | £384.20 | In Stock | |
| XR504250 | 25 | 4 | 45 | 120 | 25 | 0.3 | £663.30 | 5 days |
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