Previous studies of turning with active driven rotation have shown the prospect of using this machining technology. Its advantages are mainly in high machining productivity, extension of tool life, achievement of satisfactory quality of machined surfaces and reduction of cutting temperature. The reduction in cutting temperature is caused by the constant replacement of the active part of the tool during material cutting and the cooling of the tool when the active part of the cutting tool is outside the cutting zone. With the design and use of the new design of the monolithic rotary tool, the problems that arise when using tools consisting of a chuck and a cutting insert are eliminated. When using these tools, due to the clearance in the clamping of the cutting insert in the tool holder, vibrations occur, which have a great influence on the process and the resulting machining quality. The monolithic rotary tool was used for machining of hardened tool steel 90MnCrV8 and the influence of the change of the workpiece cutting speed on the generated cutting temperature and the resulting chips was monitored.