Description:This switch is easy to assemble on the electric hand drill and convenient for usage.Widely used in electric hand drill or other power tools.Great to replace the old or broken one of your drill.Speed is convenient to adjust, press down the switch button to start, the lower you press down, the faster the speed is. Power Input Wiring Instructions: The terminal connected to the red wire is connected to the positive pole of the power supply, the terminal connected to the black wire is connected to the negative pole of the power supply.This switch is a direct current switch. There are electronic components in it. When connecting the power supply, we should pay attention to the positive and negative poles.
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