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OSG Carbide 3 Flute End Mill Square - Regular Length Centre Cutting For General Applications - 8mm

SKU:OSG-403-3150

The OSG Carbide 3 Flute End Mill Square, Regular Length, Centre Cutting, for General Applications, 8mm diameter, is a versatile carbide tool designed for a wide range of general machining tasks. ... Read more ↓
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Cutter Diameter8
Number of Flutes3
Flute Length21
Overall Length64
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£26.18
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Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The OSG Carbide 3 Flute End Mill Square, Regular Length, Centre Cutting, for General Applications, 8mm diameter, is a versatile carbide tool designed for a wide range of general machining tasks. With a three-flute design and a square cutting end, it excels at milling, slotting, and profiling, delivering efficient material removal and precise edges. Its center-cutting geometry lets you plunge directly into the workpiece, making it ideal for pockets, slots, and contouring in everyday shop runs.

Built for dependable performance across industries, this end mill combines rigid carbide with a well-balanced flute arrangement to provide consistent results, even on demanding runs. It's a reliable choice for engineers, machinists, hobbyists, and production environments that need predictable tool life and smooth finishes in general-purpose applications.

  • Three-flute geometry for efficient material removal: The three flutes balance fast cutting with good edge quality, enabling smooth stock removal on a variety of materials while maintaining control and finish.
  • Centre-cutting square end for plunging and profiling: The square end and center-cutting design let you start cuts in the middle of the workpiece, making slots, pockets, and contours quick and straightforward.
  • Regular-length carbide construction for reliable performance: Regular length provides rigidity and stability for general-purpose applications, delivering repeatable cuts and longer tool life in everyday milling tasks.

By choosing this end mill, you support faster setup, fewer tool changes, and more consistent results across multiple projects. The 8mm diameter increases rigidity and chip clearance for efficient material removal, helping you finish jobs with tighter tolerances and smoother surfaces, whether you're prototyping, repairing, or producing parts.

Part Numbers

Protool Part Number
OSG-403-3150
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-403-3150. 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 Viewing8321648£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 143308914£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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