Question

why are cutting tools generally made up of metals

Answer 1

Hi
Cutting tool materials must be 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, with clearance angles designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the workpiece surface. The angle of the cutting face is also important, as is the flute width, number of flutes or teeth, and margin size. In order to have a long working life, all of the above must be optimized, plus the speeds and feeds at which the tool is run.
Hope it helps

Answer 2

cutting tools are generally made up of metals because... metals are good material.... they can retain cutting edge at high point...
they are also use in shaping of other material