The present invention relates to an endoscope which includes an operation body and a handle body which is detachable from the operation body. The endoscope includes a pair of dials which is rotatably provided in the operation body; a pair of driving gears which has different gear teeth and is provided in the operation body to be respectively combined with the dials; and a pair of driven gears which is rotatably provided in the handle body to engage with the driving gears respectively. The driven gears and the driving gears rotate as the dials rotate.
