In the machining of components, increasing the material removal efficiency is a constant challenge in technology planning. That is why when determining cutting data it is recommended to endeavor to choose values that increase the material removal rate, as long as the accuracy and quality requirements specified for the machined components can be fulfilled. In this study the possibilities for increasing material removal intensity were analyzed when an aluminum alloy was face milled. To characterize productivity various time parameters (machining time, base time, operation time, etc.) and the material volume removed in unit time can be applied. Our investigation aimed at analyzing these parameters when machining surfaces of gearbox housing when some technological parameter values (feed, cutting speed, milling head diameter) are varied. After analyzing the features of cutting by diamond tool, it was found that it is possible to increase the original values of all these parameters influencing material removal rate when the cutting allowance is removed in a single pass. This paper presents the results of an experiment carried out using selected cutting data.