The Mitutoyo HM-210 and HM-220 microhardness testers are designed for both Vickers and Knoop indenters mounted on the motorized turret, with an almost infinitely adjustable load range. To ensure proper loading, these testers use an adjustable electromagnetic loading system. Up to 4 of the improved long working distance objectives can be mounted on the measuring microscope and an easy-to-read dual-line digital filar eyepiece is present for quick and precise indentation measurements. A video camera unit can be added to these testers for easier observation of the indentations. The touch screen LCD panel conveniently displays the hardness value, as well as the test position data via the Digimatic micrometer heads. These hardness testers include data processing functions such as hardness scale conversions, statistical calculations, and OK/NG determinations.