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OSG Carbide 3 Flute End Mill Square - Regular Length Centre Cutting For General Applications - 14mm

SKU:OSG-403-5512

The OSG Carbide 3 Flute End Mill Square is a regular-length, centre-cutting milling tool with a 14 mm diameter, built for general machining tasks. It’s designed to handle a broad range of milling... Read more ↓
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Cutter Diameter14
Number of Flutes3
Flute Length30
Overall Length89
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£81.47
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In Stock— only 3 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 Square is a regular-length, centre-cutting milling tool with a 14 mm diameter, built for general machining tasks. It’s designed to handle a broad range of milling, slotting, and profiling jobs with reliable precision.

Three cutting edges deliver efficient material removal and stable performance across common applications, while the square end geometry supports clean, accurate corners, slots, and profiles in a single pass.

  • Three-flute geometry for efficient material removal: The three cutting edges strike a balance between aggressive cutting and smooth chip clearance, helping you finish jobs faster with consistent edge life.
  • Center-cutting square end for plunging and profiling: Center-cutting capability allows entry from the work surface, while the square tip delivers clean slots and precise profiles in a single pass.
  • Carbide construction for durability and precision: Hard carbide resists wear and maintains geometry under demanding use, ensuring repeatable dimensions and reliable results across general applications.

This end mill helps you streamline workflows by delivering reliable, consistent performance across everyday milling tasks, enabling efficient material removal, clean edges, and fewer reworks. Its proven carbide construction supports long tool life and predictable results, making it a dependable choice for engineers, machinists, and hobbyists who demand steady, repeatable performance.

Part Numbers

Protool Part Number
OSG-403-5512
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 Square - Regular Length Centre Cutting For General Applications

View full collection →

You are viewing OSG-403-5512. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterPriceStock Order
OSG-403-0394 133393£19.15 In Stock
OSG-403-0591 1.535393£12.35 In Stock
OSG-403-0787 237393£13.60 In Stock
OSG-403-0984 2.538393£12.35 In Stock
OSG-403-1181 3310393£12.37 In Stock
OSG-403-1378 3.5312514£17.03 In Stock
OSG-403-1575 4314514£17.79 In Stock
OSG-403-1772 4.5314515£18.86 In Stock
OSG-403-1968 5316515£18.86 In Stock
OSG-403-2362 6319646£22.47 In Stock
OSG-403-2756 7319648£26.88 In Stock
OSG-403-3150 8321648£26.18 In Stock
OSG-403-3543 93227010£30.15 In Stock
OSG-403-3937 103257010£35.23 In Stock
OSG-403-4331 113257011£48.33 In Stock
OSG-403-4724 123257612£57.96 In Stock
OSG-403-5512 Viewing143308914£81.47 In Stock
OSG-403-6299 163328916£106.62 In Stock
OSG-403-7087 1833510218£153.86 In Stock
OSG-403-7874 2033810220£174.33 In Stock
OSG-403-8661 2233810222£297.05 In Stock
OSG-403-9843 2533810225£322.85 In Stock

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