| 摘要 |
A common rafter and hip layout tool which provides a protractor portion, a common cut marking edge, a common cut marking edge pantograph arm to which is connected a bird's mouth marking arm, a seat cut marking arm connected at a right angle to the bird's mouth marking arm and a tail length marking arm. The pantograph arm and connected bird's mouth marking arm facilitates the marking of the bird's mouth cut and the seat cut. Movement of the common cut marking edge to the location indicated by the tail length marking arm facilitates the making of parallel cuts for the common rafter ridge cut and the tail cut.
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