Clamp the stock by turning the pressure handle by hand, and press the two cutting buttons. The backgauge can be adjusted by 0.5 mm / 0.019″ by turning the positioning handle. The backgauge can be locked when you repeat the same cutting position.
The PC-640 has a double safety circuit. It is hard-wired with secondary safety interrupt for operator safety. The machine does not operate when the front cover is opened. Also, if either of the two cutting buttons is released during the cutting operation, the machine will be stpooed immediately.