The MOH Concrete Hardness Test Kit is the foremost tool used in the concrete polishing industry, used to determine the hardness of the underlying concrete matrix. With tip points made of metals and alloys of equivalent hardness for the mineral standards, these points will not break off, easily be re-sharpened, and ultimately replaced after many uses. This test kit comes with everything you need, including customized components, instructions, hardness tables, and a carrying case for industrial and commercial uses. How do you use the hardness picks? Simply scratch a smooth surface of your material with the picks of various indicated hardness.