| 摘要 |
An attachment is provided for allowing a chain saw sharpener to be used for filing the depth gauge portions of the cutting links on the saw chain. The sharpener is of the type comprising a sharpener body in the form of an inverted U-shaped channel-defining member adapted to be placed over the bar of a chain saw, and a rotary burr with an abradant end portion which is receivable in a selected one of two horizontal guide bores provided in the sharpener body. The depth gauge attachment comprises an elongated gauge bar and means for removably affixing the gauge bar within the upper portion of the sharpener body channel so that the gauge bar occupies only a portion of the channel length. The thickness of the gauge bar is such that it causes the saw chain to assume a sufficiently lower position within the sharpener body channel to bring the top of the depth gauge portion of a cutting link into contact with the abradant end portion of the rotary burr when the latter is inserted into a selected one of the two guide bores. A protective hand slide is also provided for allowing the saw chain to be manually advanced during the depth gauge filing operation.
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