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ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 12mm
| Profile | Square Edge |
| Cutter Diameter | 12 |
| No of Flutes | 4 |
| Shank Diameter | 12 |
| Overall Length | 76 |
| Flute Length | 25 |
Learn more about Klarna
Introducing the Carbide End Mill Square Edge 4121, designed for superior machining performance in composite materials. This 12mm diameter tool features a 4-flute design with a 30° helix, facet relief, and a diamond coating to ensure efficient chip evacuation, excellent cutting stability, and extended tool life.
Ideal for professionals and serious hobbyists who require precision, durability, and high-quality machining results when working with composites.
- 4-Flute Design for Efficient Material Removal: Four cutting edges share the load for stable cutting, smoother finishes, and effective chip evacuation in composite materials, helping maintain dimensional accuracy and reduce downtime.
- 30° Helix with Facet Relief: The 30-degree helix paired with facet relief optimizes cutting action while minimizing rubbing along the flute surfaces, improving edge life and reducing heat buildup during long runs.
- Diamond Coating for Extended Tool Life: Diamond coating provides exceptional wear resistance and lower friction against abrasive composites, translating to longer tool life and dependable performance in demanding applications.
This combination of geometry and coating gives you a reliable, repeatable solution for clean, square-edge pockets and slots in composite workpieces, helping you finish projects faster with consistent results.
| Profile | Square Edge |
| Cutter Diameter | 12 |
| No of Flutes | 4 |
| Shank Diameter | 12 |
| Overall Length | 76 |
| Flute Length | 25 |
| Reach | - |
| Tapered | NO |
| Material | Composites |
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: ITC Carbide End Mills Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites
View full collection →You are viewing ITC-4121-12E. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Shank Diameter | Overall Length | Flute Length | Reach | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| ITC-4121-1E | 1 | 3 | 40 | 3 | 6 | £56.82 | 2 days | |
| ITC-4121-2E | 2 | 3 | 40 | 7 | 9.5 | £53.46 | 2 days | |
| ITC-4121-3E | 3 | 3 | 40 | 10 | - | £53.46 | 2 days | |
| ITC-4121-4E | 4 | 4 | 50 | 14 | - | £71.25 | 2 days | |
| ITC-4121-5E | 5 | 5 | 50 | 16 | - | £115.07 | 2 days | |
| ITC-4121-6E | 6 | 6 | 64 | 19 | - | £116.90 | 2 days | |
| ITC-4121-8E | 8 | 8 | 64 | 21 | - | £163.68 | 2 days | |
| ITC-4121-10E | 10 | 10 | 70 | 22 | - | £215.34 | 2 days | |
| ITC-4121-12E Viewing | 12 | 12 | 76 | 25 | - | £248.10 | 2 days | |
| ITC-4121-16E | 16 | 16 | 89 | 32 | - | £376.19 | 2 days | |
| ITC-4121-20E | 20 | 20 | 100 | 40 | - | £572.82 | 2 days |
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