Verify spindle runout, alignment, and mechanical precision with Checking Mandrels SK Taper Tool Holders. Precision-manufactured for machine inspection and maintenance routines on CNC machining centers equipped with DIN 69871 (SK) steep taper spindles, these test arbors feature ultra-precise cylindrical grinding and exceptionally tight concentricity tolerances. Used alongside dial test indicators, they allow quality control technicians and maintenance engineers to detect spindle bearing wear, runout errors, and machine axis misalignment quickly and accurately.
