Circuit cutting tool of PCB (Printed Circuit Board)
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The invention discloses a circuit cutting tool of a PCB (Printed Circuit Board). The circuit cutting tool comprises an arc-shaped plastic housing; the front end of the plastic housing is provided with a rectangular gap which is used for installing a cutting tool bit; a stainless steel plate which is in a concave surface shape is arranged in the rectangular gap; the outer edge of the stainless steel plate is vertically bent downward to form a gap which is used for clamping the cutting tool bit; the cutting tool bit is connected into the gap in an inserting mode; the outer side of the cutting tool bit is provided with a fixing plate which is used for fixing the cutting tool bit in the stainless steel plate through a bolt; the cutting tool bit comprises the tool bit portion and the installing portion which are integrally formed; the rear end of the installing portion is in a rounded rectangle shape and is connected into the gap in an inserting mode; a 135 degree of included angle is formed between the tool bit portion and the installing portion. The tool bit portion is level with the PCB when the plastic housing is held and accordingly the force can be exerted conveniently and the cutting can be performed. The tool bit portion is in a flat shape and accordingly the circuit cutting tool of the PCB is not easy to damage, long in service life, novel in structure, convenient to use and good in application prospect.