Pin Impact hardness tester is designed following the Brinell hardness test method. The test force is controlled by a shear pin. After reading the diameter of the indention with the reading microscope, the Brinell hardness value can be obtained from the look up table. This kind of hammer impact Brinell hardness tester is capable of testing from small to very large specimens. It is especially suitable for assemblies inconvenient to be taken to the lab and not allowed to be cut. The test can be completed in any direction to test the hardness of upper, lower and lateral part of the specimen. Standard scales : HB30, N/mm², kg/mm² Applied force causes penetration of the indenter into surface with a load determined by a calibrated expendable shear pin. Resulting accuracy is comparable to the bench hardness tester