| 摘要 |
A trimmer line (531) for a string trimmer comprising an elongate flexible cutting element (532) with a longitudinal axis (533) having at least two radially extending circumferentially spaced apart cutting portions (536) extending longitudinally of the axis. At least two additional radially extending circumferentially spaced apart cutting portions (537) extend longitudinally of the axis with one of the additional cutting portions being interposed between adjacent first named cutting portions (536). The first named cutting portions extend radially for a greater distance than the additional cutting portions (537), whereby when the first named cutting portions (536) become worn the additional cutting portions (537) will provide new cutting portions for the line (531). |
