A hand held nail polish removal tool includes a housing having a main body connected by an elongated neck to a head. At least one drive connector is positioned on the first surface of the circuit board. The chip of the staple leg cut by the cutter unit 12 is guided into the chip containing portion 23 of the staple cartridge 20 by a chute 22 formed on the cutter unit 12. In addition, by means of the discharging of inductively coupled plasma, it is possible to improve an etching rate at the edge portion of the substrate and to adjust the profile of an etching process at a low processing pressure.