Bie manufactures vickers cum brinell hardness testing machines. They are able to testing at lower loads like 1 kg onwards up to 250 kg to determine vickers hardness of very thin materials like brass, copper, steel, etc, having very low case depth, also for brinell hardness of steel and other metals. These machines are made to give very high accuracy, reliability and ease of operation. The selection of load is effected with a pushbutton control system. The measurement of diagonal/diameter of indentation is completed using built-in optical system with graduated readout with micrometer. After taking indentation on the work-piece, the objective lens is automatically rotated into position and the image of indentation appears on the focusing screen fitted in front of the machine. A pushbutton is given for starting the loading cycle and unloading is accomplished through a hard lever. These machines conform to is-1754 for vickers test, and is-2281-1983, bs 240, and astm-e-10 for brinell test.