In both tests the pyramidal diamond indenter is forced into the material to produce the impression the only difference is of the amounts of applied loads. In micro-indentation test the hardness of materials is measured on micro scale and the applied load ranges between 1gf and 1000gf. Where in case of macro-indentation hardness test the hardness of the materials is measured on macro scale and the applied load is 1 – 120 kgf.