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Tool steels for cutting or forming processes are subjected to mechanical and thermal loads which cause abrasion, adhesion, tribooxidation and surface fatigue limiting tool lifetime. Laboratory tests are often used to investigate tribological systems enabling selection or optimization of suitable material combinations. The aim of this study was to use ball-on-disc experiments for a comparison of the dry sliding behavior of different tool steels in the range between room temperature and 300 deg C in ambient air. AISI D2 cold work steel, H13 hot work steel and M2 high speed steel discs were worn against ball bearing steel balls using a high-temperature tribometer. Wear tracks on the discs and balls were characterized using scanning electron microscopy (SEM), electron probe micro-analysis (EPMA) and optical profilometry, the latter enabling calculation of wear coefficients from the wear volume measured. The lowest wear coefficient with 4.1x10-16 m2/N was obtained for M2 steel at room temperature, followed by the D2 and H13 steel with values of 1.43x10-15 and 1.24x10-14 m2/N, respectively. The dominant wear mechanism for a testing temperature below 100 deg C was adhesion. A change in the wear mechanism from adhesion to abrasion of the steel discs was observed above 150 deg C testing temperature, consequently resulting in higher wear rates.