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Seco expands performance, economy of Square T4-08 series with new helical cutter
10/1/2014 9:30:00 AM

Fagersta, October 2014 – Seco recently added a new helical tool to its Square T4-08 line of square shoulder mills that feature four cutting edges and an innovative tangential cutter design. Ideal for slotting and contouring/shouldering applications, the Helical T4-08 excels in machining challenging materials such as cast iron, steel, stainless steel and alloys.   

Like other products within the line, the Helical T4-08’s strong, reliable pocket seats combined with multi-edge inserts optimise cutting stability and allow for clean 90-degree walls. The inserts mount tangentially in the cutter so that the cutting forces impact the thickest parts of the inserts, allowing manufacturers to achieve the required levels of strength for increased depths of cut with small diameters.

In addition to its high metal removal rates, users will also benefit from the Helical T4-08’s versatility, with options that include normal and close pitch variations, M08 and MD08 insert geometries, and MP3000, MK2050 and F40M grades. Various mounting types include Seco-Capto, Weldon, Arbor and Combimaster. The tool has cutting diameters that range from 25 mm to 54 mm and depths of cut between 22 mm and 64 mm. Corner radii ranges from 0.4 mm to 1.6 mm. Furthermore, the entire Helical T4-08 range has integrated through-coolant channels to provide extended tool life.

For more information on the Helical T4-08, please contact a local Seco representative or visit


Headquartered in Fagersta, Sweden and present in more than 50 countries, Seco Tools is a leading global provider of metal cutting solutions for milling, turning, holemaking and toolholding. 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, please visit