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 - 3.5mm
| Cutter Diameter | 3.5 |
| Number of Flutes | 3 |
| Flute Length | 12 |
| Overall Length | 51 |
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 3.5 mm diameter and three cutting edges, it handles milling, slotting, and profiling with reliable material removal and precise edge definition.
Its regular-length design provides broad compatibility with a wide range of setups and machines, delivering consistent and reliable performance for machinists across industries.
- Three-Flute Design for Efficient Material Removal: The three cutting edges optimize chip evacuation and deliver steady, productive cuts for milling, slotting, and profiling.
- Center-Cutting Square End for Versatility: Enables plunging and pocketing from the top down, delivering clean, square profiles and precise edge definition.
- Regular-Length Design for Broad Compatibility: A versatile length that fits a variety of setups and work envelopes, reducing the need for multiple tools.
Designed to deliver consistent, reliable results, this end mill supports efficient workflows and helps you achieve accurate, clean features across a range of materials and general applications.
Part Numbers
- Protool Part Number
- OSG-403-1378
- 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-403-1378. 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 | 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 Viewing | 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.
