| 摘要 |
The invention provides a frame ( 12 ) of a hack-saw ( 10 ) and, particularly, the handle formation ( 14 ), defines shoulder formations ( 22 ) that define a linear edge ( 24 ) on opposite sides of the extension formation ( 16 ), the operative external edge ( 26 ) of the extension formation ( 16 ) extending perpendicularly with respect of the shoulder formations ( 22 ). As such, the frame ( 12 ) of the hack-saw ( 10 ) can be used as a conventional L-square.
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