PURPOSE: To make cutting having smoothness and less burr possible, by fitting at least two cutters, in which cutting edges are made oblique to a lead part, to a cutting edge fitting member movable in vertically to a base.

CONSTITUTION: For example, in a cutting device for cutting off electronic parts to be mounted on a lead frame; at least two cutters 31, in which cutting edges 31a are made oblique to a lead part, are fitted to a cutting edge fitting member 32 movable in vertically to a base 1. consequently when the cutter 31 is damaged, it is sufficient to exchange only the damaged cutter to ease the fitting- exchanging work of the cutter resultantly. The other side cutter is fitted so as to cancel lateral direction force applied to one side cutter by the tilt direction of the cutting edges 31a of the cutters 31, This makes it possible to perform cutting in smooth and in less burr.