961 Series

Tool 961i0812C

Standard ball nose mills lose reach as the cut progresses deeper. The 961 Series extends beyond 270 degrees to provide 300 degrees of spherical contact.

The extended ball geometry maintains cutting action well past the equator, allowing deeper undercut profiles without repositioning the workpiece.
Four flutes balance chip evacuation with surface finish requirements on steel, aluminum, and most machinable metals.
The 0.117" neck diameter provides clearance while maintaining rigidity at the 0.1875" cutting diameter.
TiB₂ coating handles the thermal buildup common in extended engagement operations.
The coating's lower coefficient of friction reduces heat generation when the tool maintains contact through the extended ball profile, particularly useful in aluminum applications where chip welding becomes problematic.