In the context of metalworking, a cutting tool, is any tool that is used to remove metal from the workpiece by means of shear deformation. It frequently refers to as a tool bit. In order to perform a long time, cuttingtools
must be made of a material harder than the material which is to be cut,
and the tool must be able to withstand the heat generated in the metal cutting process. Also, the tool must have a specific geometry, designed so that the cutting
edge can contact the workpiece without the rest of the tool dragging on
the surface of the piece part surface. The angle of the cutting face is also important as is the flute width, tool margin and tool material.
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