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Widin Carbide End Mill For Mold & Die - 2 Flute Straight Ball - 4mm
| Cutter Diameter | 4 |
| Number of Flutes | 2 |
| Flute Length | 12 |
| Overall Length | 70 |
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Description
The Widin Carbide End Mill for Mold & Die is a 4mm, 2-flute straight-ball cutting tool designed for precise contouring in mold and die work. Its compact diameter and ball-end geometry make it ideal for creating complex 3D features, fillets, and cavities with clean, accurate finishes—suitable for professionals and serious hobbyists alike.
The 2-flute Straight Ball design (WSB502) uses a high-precision R tolerance to deliver consistently accurate geometry and superior surface finishes. The straight flute geometry boosts flute rigidity and wear resistance, extending tool life and maintaining performance when cutting through tougher materials.
- High-precision cutting edge with tight R tolerance: Enables accurate profiles and smooth surfaces, reducing secondary finishing and boosting first-pass quality.
- Straight flute for rigidity and long tool life: Increases flute strength and wear resistance, delivering stable performance and reduced downtime on hard materials.
- Ball-end geometry for smooth 3D contours: Ideal for molds and dies, producing graceful fillets and intricate features with fewer passes.
This combination of precision, durability, and versatile geometry helps you complete mold and die tasks faster, with reliable results and less rework. Built from carbide for rugged longevity, it’s a dependable choice for demanding applications in CNC machining, from detailed detailing to deep cavity work.
Part Numbers
- Protool Part Number
- USB502040
- 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 End Mill For Mold & Die - 2 Flute Straight Ball (WSB502)
View full collection →You are viewing USB502040. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| USB502050 | 5 | 2 | 18 | 90 | 6 | 2.5 | £35.20 | In Stock | |
| USB502060 | 6 | 2 | 20 | 90 | 6 | 3 | £35.20 | 5 days | |
| USB502040 Viewing | 4 | 2 | 12 | 70 | 6 | 2 | £32.48 | 5 days | |
| USB502030 | 3 | 2 | 10 | 70 | 6 | 1.5 | £32.48 | In Stock | |
| USB502080 | 8 | 2 | 25 | 100 | 8 | 4 | £61.40 | 5 days | |
| USB502120 | 12 | 2 | 32 | 110 | 12 | 6 | £131.93 | In Stock | |
| USB502160 | 16 | 2 | 35 | 150 | 16 | 8 | £388.70 | 5 days | |
| USB502200 | 20 | 2 | 40 | 150 | 20 | 10 | £542.75 | 5 days | |
| USB502100 | 10 | 2 | 30 | 100 | 10 | 5 | £84.80 | 5 days |
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