PROBLEM TO BE SOLVED: To facilitate passing of the next cutting blade by floating cut grasses to reduce double cutting and to prevent entwining by discharging cut grasses to the outside, and to reduce scattering of grasses to a face, in comparison with a conventional product.SOLUTION: In a cutting blade which is rotated at high speed, processing is simple, and equipment is simple and well-balanced. Namely, in a rotary grass-cutting blade, in the case of 8 blades, a flank of a cutting blade is faced upward, and inclined thinning 8 is applied to the inside of a part of an outer peripheral groove of a rotor. Further, warp-faced bodies 3, 4 for aiming at floating of grasses and discharging it to the outside are provided on an upper surface.SELECTED DRAWING: Figure 1
