| 摘要 |
An asphalt shingle sheet cutting device for quickly cutting an asphalt shingle sheet along a straight line at a variety of angles. The device includes a lower base platform and an upper cutting platform coupled to base platform by a plurality of downwardly depending support legs. An adjustment plate is coupled to the lower surface of the cutting platform. The adjustment plate has a pivot pin downwardly depending therefrom. A swing arm is pivotally mounted to the pivot pin of the adjustment plate. The swing arm has a mounting shaft upwardly extending from the rearwards end of the swing arm. A cutting blade is pivotally coupled to the upper end of the mounting shaft. The front edge of the adjustment plate has a plurality of spaced apart notches for contacting an abutment tab extending from the swing arm to hold the mounting shaft and the cutting blade at predetermined angles.
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