Abstract: The invention describes a cutting tool, preferably a cutoff parting tool, having one or more replaceable cutting inserts. The cutting inserts comprises on the supporting and/or clamping surfaces embossed elements. Upon clamping the cutting inserts these elements cause a plastic deformation of the contact surfaces on the toolholder. In this fashion, the cutting inserts are additionally stabilized against lateral compressive forces and tensile forces forcing them out of the seat.

Abstract: A cutting tool having improved chip runoff over a wide range of cutting conditions is provided. The cutting tool improves chip deformation and reduces cutting forces, resulting in the generation of lower temperatures and increased service life. The tool has at least two notches near a cutting corner which are positioned at an angle with respect to a cutting edge. As notches are positioned farther from the cutting corner the angle increases and the notches are spread farther apart. The arrangement reduces cutting forces even for larger feeds. In addition, the notches are provided with two opposite sides which differ in vertical slope, the side farther from the corner having the greater slope to again facilitate chip deformation and reduce friction.