| 摘要 |
An attachment is provided which includes a support member of L-shaped cross section having a first aperture in one leg through which a grinding wheel may extend and a second aperture in the other leg for receiving the shaft of the grinding wheel. An adjustably mounted plate having a third aperture therein is secured to the second leg and arranged to be brought into spaced relation to the first leg so that the first leg and the plate may ride along the opposite faces of the chain saw bar for effectively guiding the attachment and a grinding wheel mounted thereon along the edge of the bar. To effect grinding of the face of the chain saw bar the same attachment is employed but is positioned so that the plate rides along the edge of the chain saw bar to provide an effective guide. In addition the first and third apertures are shaped for receiving and firmly holding a file for filing the edge of the chain saw bar as the attachment is moved along the bar.
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