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ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 10mm
| Profile | Square Edge |
| Cutter Diameter | 10 |
| No of Flutes | 4 |
| Shank Diameter | 10 |
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Description
The ITC Carbide End Mill Square Edge 4121 is a precision cutting tool designed for composite materials. With a 10 mm diameter, the square edge delivers clean, accurate pockets and profiles, making it a dependable choice for engineers, machinists, and hobbyists tackling demanding composite work.
Built for durability and consistent performance, this end mill combines a four-flute geometry with a 30° helix, facet relief, and a diamond coating. This powerful combination supports efficient chip evacuation, stable cutting, and extended tool life, even in abrasive composite applications.
- Diamond-coated wear resistance: Diamond coating provides exceptional hardness and wear resistance, helping the tool last longer in abrasive composites and reducing the need for frequent replacements.
- 4-flute design for efficient material removal: Four flutes improve chip evacuation and allow higher feeds, boosting productivity while maintaining a high-quality finish on composite surfaces.
- 30° helix with facet relief for stable cutting: The 30° helix and facet relief reduce cutting forces and chatter, delivering smoother cuts and more consistent results across runs.
This end mill is engineered to deliver reliable, repeatable results in composite machining. Its combination of robust carbide construction, diamond coating, and optimized geometry supports tighter tolerances, faster cycle times, and extended tool life, helping you complete complex jobs with confidence.
Part Numbers
- Protool Part Number
- ITC-4121-10E
- Brand
- ITC
- Category
- End Mill
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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: ITC Carbide End Mills Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites
View full collection →You are viewing ITC-4121-10E. 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 Viewing | 10 | 10 | 70 | 22 | - | £215.34 | 2 days | |
| ITC-4121-12E | 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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