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ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 10mm

ITC Carbide End Mill Square Edge 4121 - 4 Flute 30° Helix With Facet Relief & Diamond Coating - Composites - 10mm

SKU:ITC-4121-10E

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, makin... Read more ↓
N
O
ProfileSquare Edge
Cutter Diameter10
No of Flutes4
Shank Diameter10
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£215.34
Prices shown ex. VAT
2 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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
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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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

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 SKUCutter DiameterShank DiameterOverall LengthFlute LengthReachPriceStock Order
ITC-4121-1E 134036£56.82 2 days
ITC-4121-2E 234079.5£53.46 2 days
ITC-4121-3E 334010-£53.46 2 days
ITC-4121-4E 445014-£71.25 2 days
ITC-4121-5E 555016-£115.07 2 days
ITC-4121-6E 666419-£116.90 2 days
ITC-4121-8E 886421-£163.68 2 days
ITC-4121-10E Viewing10107022-£215.34 2 days
ITC-4121-12E 12127625-£248.10 2 days
ITC-4121-16E 16168932-£376.19 2 days
ITC-4121-20E 202010040-£572.82 2 days

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