961 Series

Tool 961i1604B

Tight undercuts demand maximum ball contact. The 961i1604B extends spherical engagement to 300 degrees.

Four flutes distribute cutting forces across the extended ball geometry, maintaining surface finish during deep undercut operations.
The 0.158" neck diameter provides clearance for complex profile work while supporting the 0.25" cutting diameter through demanding cuts.
AlTiN coating handles the heat buildup common in steel applications where extended ball contact generates friction.
The coating extends tool life during the longer engagement periods required for 300-degree profile work.
Aluminum cuts benefit from the coating's wear resistance during high-volume operations.
Four-flute configuration balances material removal rates with the extended dwell time inherent in deep spherical cuts.
The geometry works across steel, aluminum, and most machinable metals where standard ball mills cannot reach the required profile depth.