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

Like other products within the line, the SquareT4-08 Helical’s pocket seats combined with multi-edge inserts improve 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.

The tool has cutting diameters that range from 0.98" (25 mm) to 2.13" (54 mm) and depths of cut between 0.87" (22 mm) and 2.52" (64 mm). Corner radii ranges from 0.02" (0.4 mm) to 0.063" (1.6 mm). Furthermore, the entire Square T4-08 Helical range has integrated through-coolant channels to provide extended tool life.