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

OSG Carbide 3 Flute End Mill Square - Regular Length Centre Cutting For General Applications - 2.5mm
| Cutter Diameter | 2.5 |
| Number of Flutes | 3 |
| Flute Length | 8 |
| Overall Length | 39 |
Learn more about Klarna
Description
The OSG Carbide 3 Flute End Mill Square is a regular-length, center-cutting tool designed for general machining tasks.
With a 2.5 mm diameter and a three-flute configuration, it excels at milling, slotting, and profiling, delivering efficient material removal and precise results across a wide range of materials.
- Three-flute geometry for efficient material removal: The three cutting edges remove material quickly while maintaining smooth finishes and stable chip evacuation during light-to-medium depth cuts.
- Center-cutting square end for versatile milling: The square cutting end enables plunging and accurate contouring, making it suitable for slots, profiles, and complex geometries with consistent dimensions.
- Regular-length design for reliable performance: Balanced length fits standard setups, delivering predictable depth of cut and repeatable results across different machines and workflows.
Designed for real-world machining needs, this end mill helps you accelerate workflows with efficient material removal and clean, repeatable finishes. Its carbide construction offers durability and wear resistance for longer tool life, while the 2.5 mm diameter supports precise work on small features. Rely on consistent performance and easy integration into existing setups for reliable results across a wide range of general machining tasks.
Part Numbers
- Protool Part Number
- OSG-403-0984
- Brand
- OSG
- 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: OSG Carbide 3 Flute End Mill Square - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-403-0984. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-403-0394 | 1 | 3 | 3 | 39 | 3 | £17.02 | In Stock | |
| OSG-403-0591 | 1.5 | 3 | 5 | 39 | 3 | £10.98 | In Stock | |
| OSG-403-0787 | 2 | 3 | 7 | 39 | 3 | £12.08 | In Stock | |
| OSG-403-0984 Viewing | 2.5 | 3 | 8 | 39 | 3 | £10.98 | In Stock | |
| OSG-403-1181 | 3 | 3 | 10 | 39 | 3 | £11.00 | In Stock | |
| OSG-403-1378 | 3.5 | 3 | 12 | 51 | 4 | £15.13 | In Stock | |
| OSG-403-1575 | 4 | 3 | 14 | 51 | 4 | £15.82 | In Stock | |
| OSG-403-1772 | 4.5 | 3 | 14 | 51 | 5 | £16.77 | In Stock | |
| OSG-403-1968 | 5 | 3 | 16 | 51 | 5 | £16.77 | In Stock | |
| OSG-403-2362 | 6 | 3 | 19 | 64 | 6 | £19.98 | In Stock | |
| OSG-403-2756 | 7 | 3 | 19 | 64 | 8 | £23.89 | In Stock | |
| OSG-403-3150 | 8 | 3 | 21 | 64 | 8 | £23.27 | In Stock | |
| OSG-403-3543 | 9 | 3 | 22 | 70 | 10 | £26.80 | In Stock | |
| OSG-403-3937 | 10 | 3 | 25 | 70 | 10 | £31.32 | In Stock | |
| OSG-403-4331 | 11 | 3 | 25 | 70 | 11 | £42.96 | In Stock | |
| OSG-403-4724 | 12 | 3 | 25 | 76 | 12 | £51.52 | In Stock | |
| OSG-403-5512 | 14 | 3 | 30 | 89 | 14 | £72.42 | In Stock | |
| OSG-403-6299 | 16 | 3 | 32 | 89 | 16 | £88.85 | In Stock | |
| OSG-403-7087 | 18 | 3 | 35 | 102 | 18 | £128.22 | In Stock | |
| OSG-403-7874 | 20 | 3 | 38 | 102 | 20 | £145.27 | In Stock | |
| OSG-403-8661 | 22 | 3 | 38 | 102 | 22 | £247.54 | In Stock | |
| OSG-403-9843 | 25 | 3 | 38 | 102 | 25 | £269.04 | In Stock |
No products match your filters.


