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OSG Carbide 4 Flute End Mill Square - Regular Length Centre Cutting For General Applications - 9mm

SKU:OSG-404-3543

The OSG Carbide 4 Flute End Mill Square, 9 mm diameter, is a regular-length, center-cutting tool built for general machining. It’s ideal for engineers, machinists, hobbyists, and shop-floor opera... Read more ↓
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Cutter Diameter9
Number of Flutes4
Flute Length22
Overall Length70
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£30.09
Prices shown ex. VAT
In Stock— only 6 left
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The OSG Carbide 4 Flute End Mill Square, 9 mm diameter, is a regular-length, center-cutting tool built for general machining. It’s ideal for engineers, machinists, hobbyists, and shop-floor operators who need reliable milling, slotting, and profiling in a single, versatile tool.

Its four-flute geometry and carbide construction deliver consistent cutting performance with precise chip removal, making it a dependable choice across a wide range of materials and applications.

  • Four-flute carbide design: Enables efficient material removal and smoother finishes, with added stiffness to reduce chatter across a range of materials.
  • Regular-length center-cutting geometry: Delivers plunging capability and versatile milling in a single tool, reducing setup time and tool changes.
  • Square end with durable carbide: Produces precise corners and clean slots while offering wear resistance for longer tool life in general machining tasks.

This end mill helps you streamline workflows by supporting plunge milling and full-profile profiling in one pass, reducing setup times and tool changes. With durable carbide construction and a square cutting edge, you’ll achieve repeatable dimensions and cleaner finishes, enhancing overall productivity and part quality.

Part Numbers

Protool Part Number
OSG-404-3543
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 4 Flute End Mill Square - Regular Length Centre Cutting For General Applications

View full collection →

You are viewing OSG-404-3543. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterPriceStock Order
OSG-404-0394 143393£19.15 In Stock
OSG-404-0591 1.545393£12.35 In Stock
OSG-404-0787 247393£13.60 In Stock
OSG-404-0984 2.548393£12.35 In Stock
OSG-404-1181 3410393£12.37 In Stock
OSG-404-1378 3.5412514£17.03 In Stock
OSG-404-1575 4414514£17.79 In Stock
OSG-404-1772 4.5414515£18.86 In Stock
OSG-404-1968 5416515£18.88 In Stock
OSG-404-2362 6419646£22.55 In Stock
OSG-404-2756 7419648£26.88 In Stock
OSG-404-3150 8421648£26.18 In Stock
OSG-404-3543 Viewing94227010£30.09 In Stock
OSG-404-3937 104257010£35.29 In Stock
OSG-404-4331 114257011£48.41 In Stock
OSG-404-4724 124257612£58.08 In Stock
OSG-404-5512 144308914£81.58 In Stock
OSG-404-6299 164328916£119.17 In Stock
OSG-404-7087 1843510218£153.60 In Stock
OSG-404-7874 2043810220£174.61 In Stock
OSG-404-8661 2243810222£297.05 In Stock
OSG-404-9843 2543810225£323.34 In Stock

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