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OSG 55° Helix Endmill Square Edge - Centre Cutting Regular Length - 12mm

SKU:OSG-402-472455

The OSG 55° Helix Endmill Square Edge, 12 mm diameter, is a centre-cutting, regular-length milling tool designed for versatile general machining. With a 55-degree helix, it provides efficient chi... Read more ↓
N
Cutter Diameter12
Number of Flutes2
Flute Length25
Overall Length76
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£72.07
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30+ years expertise
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Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The OSG 55° Helix Endmill Square Edge, 12 mm diameter, is a centre-cutting, regular-length milling tool designed for versatile general machining. With a 55-degree helix, it provides efficient chip evacuation and reduced cutting forces, making it well suited for milling, profiling, and slotting across a range of materials.

  • 55° Helix designed for smooth cutting and quick chip removal: The 55-degree helix funnels chips away from the cut, reducing heat buildup and helping maintain a clean, consistent finish across milling, profiling, and slotting operations.
  • Square-edge geometry for precise material removal: The sharp, square cutting edges deliver clean shoulders and accurate dimensions with stable performance, even in challenging workpieces.
  • Centre-cutting, regular-length versatility: Centre cutting enables plunging and versatile milling, while the regular-length design provides rigidity and control across a variety of depths and applications.

This endmill supports a smooth, efficient workflow by delivering reliable, repeatable results in everyday milling tasks. Its combination of chip evacuation, precise material removal, and stable performance helps reduce rework, speed up setups, and deliver consistent finishes across a range of applications.

Part Numbers

Protool Part Number
OSG-402-472455
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 55° Helix Endmill Square Edge - Centre Cutting Regular Length

View full collection →

You are viewing OSG-402-472455. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterPriceStock Order
OSG-402-118155 3210393£14.40 In Stock
OSG-402-157655 4214514£16.82 In Stock
OSG-402-196855 5216515£22.09 In Stock
OSG-402-236255 6219646£26.41 In Stock
OSG-402-315055 8221648£31.23 In Stock
OSG-402-393755 102257010£52.85 In Stock
OSG-402-472455 Viewing122257612£72.07 In Stock
OSG-402-551255 142308914£107.43 In Stock
OSG-402-629955 162328916£134.03 In Stock
OSG-402-708755 1823510218£165.23 In Stock
OSG-402-787455 2023810220£193.00 In Stock
OSG-402-984355 2523810225£266.10 In Stock

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