... makes it easy to measure the rough surface, even cast iron. It is widely used in almost all kinds of industries ... measure the thickness of many materials, e. g. Steel, Cast iron, Aluminum, Red copper, Brass, Zinc, Quartz glass, Polyethylene, PVC, Gray ... cast iron, Nodular cast iron.SpecificationsDisplay: 4 digits, 10 mm LCDRange: 1.2~200mm ...