| 摘要 |
A working tool (10) is disclosed having an elongated shaft (11), a handle (12) mounted generally perpendicular to one end of the shaft (11), and a ground working head (13) mounted to an opposite, lower end of the shaft (11). The working tool (10) also includes an annular step plate (16) mounted upon the shaft for rotary movement relative to the shaft 11. An upper stop (7) and a lower stop (18) are also coupled to the shaft (11) above and below the step plate (16), respectively.
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