Thefinely controlled crack depths offer greater discrimination when comparingpenetrant sensitivity.
A set of two panels, eachmeasuring 3.875 x 1.875 inches (100 x 35mm), sheared from the same stock withmatching crack patterns.
Makes simultaneous comparison oftwo penetrant batches practical.
Available in sets having crackdepths of: 10um, 20um,30um, and 50um.