In the mounting structure of a drag operation member, Hexagons Guide variations in the contact area of the section and the reel body and by reducing that problem.drag operation structure for mounting member 45, and the second cam member 22, and the guide member 17, and the guide fixing portion 39, a drag and a swing support portion 34 for supporting the operating member. The second cam member is engaged with the first cam members align the drag operating member, in cooperation with the swing of the drag operating member moves in the axial oscillation. Guide member is not rotated with respect to the reel unit the second cam member, and has a hexagonal portion 35 and the cylindrical portion 36 to guide so as to be movable in the pivot direction. Guide fixing part, is provided on the side of the reel unit, fitting the hexagonal portion hexagonal recess 37 and a cylindrical portion fitting through hole 38, and the guide portion is fixed. The hexagonal recess, a first of the first outer peripheral surface and a first outer peripheral surface and outer peripheral surface opposed to the fourth and the first and the fourth inner peripheral surface is disposed with a gap, respectively, the first outer peripheral surface side of the second outer peripheral surface adjacent to the first outer peripheral surface and possibly the first contact portion disposed in contact, and a second inner peripheral surface having a first part that is disposed with a gap Ivan from the second outer surface in the second portion of the third outer peripheral face side of the second outer peripheral surface and adjacent to, the third outer circumferential surface and a third outer surface and the opposite outer peripheral surface in contact with the sixth and possibly the third and sixth inner peripheral surface is arranged, a fourth a fifth contact and the second contact portion of the third side of the outer circumferential surface as the outer circumferential surface 4 adjacent to the outer pe
