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OSG Carbide 3 Flute End Mill Square TiAlN Coated - Regular Length Centre Cutting For General Applications - 3.5mm
| Cutter Diameter | 3.5 |
| Number of Flutes | 3 |
| Flute Length | 12 |
| Overall Length | 51 |
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Description
The OSG Carbide 3 Flute End Mill Square TiAlN coated is a 3.5 mm diameter carbide end mill with a square cutting geometry designed for general machining tasks. Its regular-length, center-cutting design makes it a versatile choice for milling, slotting, and profiling across a wide range of applications.
The TiAlN coating enhances wear resistance and heat tolerance, helping the tool maintain sharpness and deliver consistent results even in demanding operations. This combination of carbide substrate and protective coating provides reliable performance for professionals, hobbyists, and production environments alike.
- Three-flute configuration for efficient material removal: The 3-flute design balances rigidity and chip evacuation, delivering steady cutting progress for milling, slotting, and profiling tasks.
- TiAlN coating for extended tool life: The TiAlN coating reduces wear and heat buildup, helping the tool last longer and perform consistently across a variety of general applications.
- Regular length center-cutting square end mill: Regular length offers versatile, stable performance, while center-cutting capability enables plunging and slotting without extra setups.
Designed for dependable, repeatable results, this end mill supports efficient workflows from prototype work to routine production. Its combination of precise geometry, protective coating, and durable carbide construction helps you achieve clean profiles, accurate slots, and reliable finishes with fewer passes and less downtime.
Part Numbers
- Protool Part Number
- OSG-403-137811
- 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 TiAlN Coated - Regular Length Centre Cutting For General Applications
View full collection →You are viewing OSG-403-137811. 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-403-039411 | 1 | 3 | 3 | 39 | 3 | £33.11 | In Stock | |
| OSG-403-059111 | 1.5 | 3 | 5 | 39 | 3 | £27.53 | In Stock | |
| OSG-403-078711 | 2 | 3 | 7 | 39 | 3 | £28.78 | In Stock | |
| OSG-403-098411 | 2.5 | 3 | 8 | 39 | 3 | £27.53 | In Stock | |
| OSG-403-118111 | 3 | 3 | 10 | 39 | 3 | £27.53 | In Stock | |
| OSG-403-137811 Viewing | 3.5 | 3 | 12 | 51 | 4 | £32.19 | In Stock | |
| OSG-403-157511 | 4 | 3 | 14 | 51 | 4 | £32.98 | In Stock | |
| OSG-403-177211 | 4.5 | 3 | 14 | 51 | 5 | £34.07 | In Stock | |
| OSG-403-196811 | 5 | 3 | 16 | 51 | 5 | £34.05 | In Stock | |
| OSG-403-236211 | 6 | 3 | 19 | 64 | 6 | £37.68 | In Stock | |
| OSG-403-275611 | 7 | 3 | 19 | 64 | 8 | £45.31 | In Stock | |
| OSG-403-315011 | 8 | 3 | 21 | 64 | 8 | £44.63 | In Stock | |
| OSG-403-354311 | 9 | 3 | 22 | 70 | 10 | £51.23 | In Stock | |
| OSG-403-393711 | 10 | 3 | 25 | 70 | 10 | £53.75 | In Stock | |
| OSG-403-433111 | 11 | 3 | 25 | 70 | 11 | £70.26 | In Stock | |
| OSG-403-472411 | 12 | 3 | 25 | 76 | 12 | £79.90 | In Stock | |
| OSG-403-551211 | 14 | 3 | 30 | 89 | 14 | £103.42 | In Stock | |
| OSG-403-629911 | 16 | 3 | 32 | 89 | 16 | £141.41 | In Stock | |
| OSG-403-708711 | 18 | 3 | 35 | 102 | 18 | £192.53 | In Stock | |
| OSG-403-787411 | 20 | 3 | 38 | 102 | 20 | £226.15 | In Stock | |
| OSG-403-866111 | 22 | 3 | 38 | 102 | 22 | £361.90 | In Stock | |
| OSG-403-984311 | 25 | 3 | 38 | 102 | 25 | £387.73 | In Stock |
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