The ceramic cutting tools used were pure alumina ceramic with the addition of ZrO2, CC620,and mixed alumina (Al2O3 + TiC), CC650. The two types of tools were mounted on the same toolholder and had the same geometrical configurations except for the chamfering width, which is widerin CC620 than in CC650. The higher chamfering width of CC620 was performed by the manufacturerto increase the strength of the cutting edge of the pure alumina ceramic tool to alleviate fracture and chipping that may occur during cutting. This chamfering width difference would not affect the comparative results, as the used depth of cut was smaller than the chamfering width of both tools.Table 2 illustrates complete descriptions of the used ceramic tool materials and tool holder.