| 摘要 |
A string trimmer comprising an elongate shaft, a cutting head rotatably mounted on one end of the elongate shaft wherein the head comprises: a base; a cap; a spool rotatable mounted in the cap; an autofeed mechanism mounted within the cap a nd which interacts between the cap and the spool; wherein the cap is releasably attachable to the base. The cap clips into the base. The cap comprises a fir st part, and the base comprises a second part wherein two resilient deformable arms havin g ribs formed on the end of the arms are mounted on one part and which engage with corresponding holes formed in the other part.
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