Interchangeable probe tips and handles are designed for many applications including detection of surface or near-surface discontinuities, conductivity and coating measurements, weld scans, fastener hole inspections, and sub-surface fatigue crack detection. For general surface inspections, the pencil, spot, and weld scan probes are available in various sizes. ZETEC's bolt hole probes used with the hand held rotating scanner allow for inspection of diameters from 3/16" to ¾". For conductivity, coating and composite measurements, the conductivity and Sondicator probes provide an easy to use solution.