961 Series

Tool 961i3216B

Standard ball nose mills hit geometry limits on complex undercuts. The 961i3216B extends spherical contact to 300 degrees.

The additional 60 degrees of ball engagement beyond conventional profiles allows deeper undercut access without repositioning the part.
Four flutes balance surface finish with chip evacuation in the 0.5" cutting diameter.
The 0.323" neck diameter provides clearance for intricate cavity work while maintaining rigidity at the tool-workpiece interface.
AlTiN coating handles the thermal cycling common in steel and aluminum operations.
The coating reduces built-up edge formation during interrupted cuts typical in undercut profiling work.
Heat resistance extends tool life when working harder steels where cutting temperatures spike during deep engagement passes.
Works across steel, aluminum, and most machinable metals where complex geometry requires maximum spherical access.