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OSG Carbide 3 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications - 8mm x R2.5

SKU:OSG-403-3150R25

The OSG Carbide 3 Flute End Mill with Corner Radius is a versatile, general‑purpose cutting tool designed for center cutting operations. Sized at 8 mm in diameter with a 2.5 mm corner radius, it ... Read more ↓
P
K
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Cutter Diameter8
Number of Flutes3
Flute Length21
Overall Length64
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£47.59
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In Stock— only 1 left
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30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The OSG Carbide 3 Flute End Mill with Corner Radius is a versatile, general‑purpose cutting tool designed for center cutting operations. Sized at 8 mm in diameter with a 2.5 mm corner radius, it excels at milling, slotting, and profiling across a range of materials. The TiAlN coating enhances wear resistance and heat tolerance, while its regular-length design and center-cut geometry deliver consistent performance in everyday machining tasks.

  • Corner Radius for Smoother Finishes: The 2.5 mm corner radius helps damp chatter and produces smoother, more consistent cuts, reducing finishing passes and improving surface quality on profiles and pockets.
  • TiAlN Coating for Longer Tool Life: The TiAlN coating adds wear resistance and heat tolerance, helping the edge stay sharp longer in demanding materials and reducing tool changes over time.
  • Three-Flute Design for Efficient Material Removal: The 3-flute geometry balances aggressive material removal with cutting stability, delivering steady feeds and reduced vibration for reliable milling, slotting, and profiling.

This end mill supports faster cycle times, consistent results, and a smoother workflow across industries—from precision detailing to heavier profiling tasks. By combining a durable carbide form, protective coating, and a geometry tuned for general applications, it helps you achieve precise tolerances, better surface finishes, and fewer interruptions due to tool wear.

Part Numbers

Protool Part Number
OSG-403-3150R25
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.

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: OSG Carbide 3 Flute End Mill Corner Radius TiAlN Coated - Regular Length Centre Cutting For General Applications

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You are viewing OSG-403-3150R25. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterCorner RadiusPriceStock Order
OSG-403-1575R02 43145140.2£29.69 In Stock
OSG-403-1575R025 43145140.25£29.69 In Stock
OSG-403-1575R04 43145140.4£29.69 In Stock
OSG-403-1575R05 43145140.5£29.69 In Stock
OSG-403-1575R075 43145140.75£29.69 In Stock
OSG-403-1575R10 43145141£29.69 In Stock
OSG-403-1575R15 43145141.5£29.69 In Stock
OSG-403-1968R025 53165150.25£32.18 In Stock
OSG-403-1968R05 53165150.5£32.18 In Stock
OSG-403-1968R075 53165150.75£32.18 In Stock
OSG-403-1968R10 53165151£32.18 In Stock
OSG-403-1968R125 53165151.25£32.18 In Stock
OSG-403-1968R15 53165151.5£32.18 In Stock
OSG-403-1968R20 53165152£32.18 In Stock
OSG-403-2362R02 63196460.2£40.18 In Stock
OSG-403-2362R025 63196460.25£40.18 In Stock
OSG-403-2362R05 63196460.5£40.18 In Stock
OSG-403-2362R075 63196460.75£40.18 In Stock
OSG-403-2362R08 63196460.8£40.18 In Stock
OSG-403-2362R10 63196461£40.18 In Stock
OSG-403-2362R125 63196461.25£40.18 In Stock
OSG-403-2362R15 63196461.5£40.18 In Stock
OSG-403-2362R20 63196462£40.18 In Stock
OSG-403-3150R02 83216480.2£47.59 In Stock
OSG-403-3150R025 83216480.25£47.59 In Stock
OSG-403-3150R03 83216480.3£47.59 In Stock
OSG-403-3150R05 83216480.5£47.59 In Stock
OSG-403-3150R075 83216480.75£47.59 In Stock
OSG-403-3150R08 83216480.8£47.59 In Stock
OSG-403-3150R10 83216481£47.59 In Stock
OSG-403-3150R125 83216481.25£47.59 In Stock
OSG-403-3150R15 83216481.5£47.59 In Stock
OSG-403-3150R20 83216482£47.59 In Stock
OSG-403-3150R25 Viewing83216482.5£47.59 In Stock
OSG-403-3150R30 83216483£47.59 In Stock
OSG-403-3937R02 1032570100.2£60.14 In Stock
OSG-403-3937R025 1032570100.25£60.14 In Stock
OSG-403-3937R04 1032570100.4£60.14 In Stock
OSG-403-3937R05 1032570100.5£60.14 In Stock
OSG-403-3937R08 1032570100.8£60.14 In Stock
OSG-403-3937R10 1032570101£60.14 In Stock
OSG-403-3937R125 1032570101.25£60.14 In Stock
OSG-403-3937R15 1032570101.5£60.14 In Stock
OSG-403-3937R20 1032570102£60.14 In Stock
OSG-403-3937R25 1032570102.5£60.14 In Stock
OSG-403-3937R30 1032570103£60.14 In Stock
OSG-403-3937R32 1032570103.2£60.14 In Stock
OSG-403-3937R40 1032570104£60.14 In Stock
OSG-403-4724R02 1232576120.2£93.46 In Stock
OSG-403-4724R025 1232576120.25£93.46 In Stock
OSG-403-4724R03 1232576120.3£93.46 In Stock
OSG-403-4724R05 1232576120.5£93.46 In Stock
OSG-403-4724R075 1232576120.75£93.46 In Stock
OSG-403-4724R08 1232576120.8£93.46 In Stock
OSG-403-4724R10 1232576121£93.46 In Stock
OSG-403-4724R15 1232576121.5£93.46 In Stock
OSG-403-4724R20 1232576122£93.46 In Stock
OSG-403-4724R25 1232576122.5£93.46 In Stock
OSG-403-4724R30 1232576123£93.46 In Stock
OSG-403-4724R32 1232576123.2£93.46 In Stock
OSG-403-4724R40 1232576124£93.46 In Stock
OSG-403-6299R05 1633289160.5£169.21 In Stock
OSG-403-6299R10 1633289161£169.21 In Stock
OSG-403-6299R15 1633289161.5£169.21 In Stock
OSG-403-6299R20 1633289162£169.21 In Stock
OSG-403-6299R25 1633289162.5£169.21 In Stock
OSG-403-6299R30 1633289163£169.21 In Stock
OSG-403-6299R40 1633289164£169.21 In Stock
OSG-403-6299R50 1633289165£169.21 In Stock
OSG-403-7874R05 20338102200.5£214.77 In Stock
OSG-403-7874R10 20338102201£214.77 In Stock
OSG-403-7874R20 20338102202£214.77 In Stock
OSG-403-7874R30 20338102203£214.77 In Stock
OSG-403-7874R50 20338102205£214.77 In Stock

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