Verify lathe alignment accuracy and inspect spindle concentricity with industrial-grade Checking Mandrels (VDI alignment test arbors). Manufactured in accordance with strict DIN 69880 standards, these ultra-precision testing arbors feature a ground VDI serrated shank connected to a cylindrical test shaft with extremely low runout tolerances. Essential for machine setup, routine inspection, and post-collision turret re-alignment, they provide a reliable reference geometry to measure radial and axial runout using dial indicator gauges across CNC lathe stations.
