961 Series

Tool 961i1204B

Tight undercuts demand more ball contact than standard end mills provide. The 961i1204B extends spherical engagement to 300 degrees.

This geometry accesses profile areas that conventional ball nose mills cannot reach.
The extended contact zone pushes accessible geometry well past the equator, enabling deeper undercut machining without repositioning or specialized fixtures.
AlTiN coating handles the heat buildup common in steel operations while maintaining edge sharpness in aluminum cuts.
Four flutes balance surface finish requirements with chip evacuation in the 0.117" neck diameter constraint.
The 0.1875" cutting diameter suits detail work in molds, dies, and complex 3D profiles where undercut access determines cycle time.
Steel, aluminum, and most machinable metals respond well to the extended ball geometry.