Please log in here to access all benefits, including promotional discounts and faster checkouts.


ITC Carbide End Mill Square Edge 4621 - 4 Flute 30° Helix With Facet Relief - General Purpose - 12mm
| Profile | Square Edge |
| Cutter Diameter | 12 |
| No of Flutes | 4 |
| Shank Diameter | 12 |
Learn more about Klarna
Description
The ITC Carbide End Mill Square Edge 4621 is a general-purpose milling tool designed for a broad range of materials and operations. At 12 mm in diameter with a 4-flute configuration, it offers reliable performance for engineers, machinists, tradespeople, hobbyists, and casual users seeking predictable, repeatable results.
Its 30° helix paired with facet relief helps push chips away from the cut, reduces cutting forces, and improves cutting stability, enabling smoother finishes and better tool life in everyday milling tasks.
- Efficient chip evacuation with 30° helix and facet relief: Promotes smooth chip flow and reduces tool deflection, helping you maintain precision and extend tool life.
- Four-flute design for balanced material removal and finish: Provides rigidity for steady cutting while delivering clean pockets and slots.
- Durable carbide construction for long tool life: Hard, wear-resistant material designed for general‑purpose use across common milling applications, delivering consistent performance.
Whether you’re setting up a milling operation or handling on-demand shop tasks, the 4621 helps you complete jobs faster with repeatable results and minimal downtime. Its reliable cutting action supports accurate pockets, clean slots, and smooth finishes across a wide range of projects.
Part Numbers
- Protool Part Number
- ITC-4621-12
- 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 4621 - 4 Flute 30° Helix With Facet Relief - General Purpose
View full collection →You are viewing ITC-4621-12. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Shank Diameter | Overall Length | Flute Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| ITC-4621-5 | 5 | 5 | 64 | 20 | £46.72 | 2 days | |
| ITC-4621-6 | 6 | 6 | 75 | 28 | £49.66 | 2 days | |
| ITC-4621-8 | 8 | 8 | 75 | 28 | £62.56 | 2 days | |
| ITC-4621-10 | 10 | 10 | 89 | 32 | £67.09 | 2 days | |
| ITC-4621-12 Viewing | 12 | 12 | 100 | 45 | £112.48 | 2 days | |
| ITC-4621-16 | 16 | 16 | 110 | 56 | £181.57 | 2 days |
No products match your filters.