PROBLEM TO BE SOLVED: To provide a cutting blade for safely cutting plants without scattering pebbles.SOLUTION: In the cutting blade equipped with carbide tip blades 3 that have tip edge parts 3a projected from the outer circumference edge parts 2a of a disk-shaped base plate 2 and are arranged at the same pitch along the outer circumference edge parts 2a of the base plate 2, approximately circular grass guiding slits 10 are formed in a notched shape at the outer circumference edge parts 2a of the base plate 2 while forming sides 3b at the upstream sides of the tip blades 3 as starting edge parts.COPYRIGHT: (C)2011,JPO&INPIT【課題】小石を飛散させることなく、安全に草木を刈り払うことができる刈払刃を提供する。【解決手段】円盤状基板2の外周端縁部2aよりもチップ先端部3aが突出し基板2の外周端縁部2aに沿って同一ピッチにて配設された超硬チップ刃3を備えた刈払刃に於て、チップ刃3の上流側の側面3bを始端部として、基板2の外周端縁部2aに、略半円弧状の草呼込スリット10を切欠形成している。【選択図】図1