New ST540 5-flute End Mill from Seco Comes with Helical Chip Splitters

Press Release Summary:

  • Offers machining processes ranging from slot milling to side mill finishing for fast material removal
  • Ensures surface finishes and can handle roughing and finishing operations from steel to cast iron and stainless steels to superalloys
  • Features necked version for long-reach applications and measures 140 in.

Original Press Release:

New Seco Niagara Cutterâ„¢ 5-flute End Mill Delivers Extreme Versatility

TROY, Mich., September 6, 2019 – The most recent addition to the expanded Niagara Cutter™ Stabilizer™ product family, the ST540 5-flute end mill raises the bar in terms of performance and versatility. The STS540, STSN540, STR540, STRN540 and STRCS540 family of solid carbide end mills offers complete solutions for machining processes ranging from slot milling to side mill finishing as well as those involving up to 40 percent radial stepovers for fast material removal thanks to strong cutting edges and full eccentric reliefs. 

In addition to smaller diameter tools for high-performance milling and 140 new inch sizes, including a new necked version for long-reach applications, the expansion also includes advanced helical chip splitters developed by Niagara Cutter™ to ensure good chip evacuation in even the most challenging applications. An innovative offset design ensures superior surface finishes and makes for an all-in-one end mill solution that can handle both roughing and finishing operations and is equally effective in all material types, from steel to cast iron and stainless steels to superalloys. 

About Seco Tools, LLC

Headquartered in Fagersta, Sweden and present in more than 75 countries, Seco Tools is a leading global provider of metal cutting solutions for milling, stationary tools, holemaking and tooling systems. For more than 80 years, the company has provided the technologies, processes and support that manufacturers depend on for maximum productivity and profitability. For more information on how Seco’s innovative products and expert services bring success to manufacturers across all industry segments in North America, please contact Seco Tools, LLC, 2805 Bellingham Drive, Troy, Michigan, Tel: 248.528.5451, or visit


 dgs Marketing Engineers®

Chuck Bates | 317.813.2230


 Seco Tools, LLC

 Bob Heery | 248.528.5451

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