Locate internal bores, external shafts, and punch marks relative to machine tool spindles with industrial-grade General Centre Finders (coaxial centering indicators / centering gauges). Mounted directly in machine spindles or toolholders, these precision alignment instruments utilize a stationary dial indicator gauge coupled with a rotating probe arm. As the machine spindle revolves, the probe sweeps around internal or external cylindrical workpieces while the indicator face remains stationary facing the operator, allowing for rapid, high-precision concentric alignment and zeroing on milling machines, boring mills, and drill presses.
