edge tool - any cutting tool with a sharp cutting edge (as a chisel or knife or plane or gouge)

razorblade - a blade that has very sharp edge

safety razor - a razor with a guard to prevent deep cuts in the skin

electric razor, electric shaver, shaver - a razor powered by an electric motor

straight razor - a razor with a straight cutting edge enclosed in a case that forms a handle when the razor is opened for use

shave - remove body hair with a razor