Broaching Unit The automatic Broaching Unit from WTO for economic manufacturing of oriented keyways and splines with up to 1,000 strokes per minutes and max. 10 mm groove width. min. 1.5 max. 32 min. 1.5 max. 32 Same insert holder for ID and OD broaching by rotating 180 degrees. 1 3 Position insert on Z Cutter lifts from workpiece 2 4 Cutter drives Lift-off function into workpiece prevents wear/ breakage when cutter retracts