| 摘要 |
A hacksaw includes a U-shaped frame and a handle connected to a first end of the frame and an engaging port is connected to a second end of the frame. A groove is defined longitudinally in the handle and a passage is defined in the handle. The passage intersects the groove and communicates with the groove. A retaining member is movably received in the passage and a recess defined in the retaining member so that a blade extends through the groove and the recess. The blade is engaged with the engaging port. A cam member is pivotably connected an end of the retaining member such that the retaining member is lifted to secure the blade between an inside of the recess and the inside of the groove by pivoting the cam member. The blade is easily loosened by pivoting the cam member in the other direction.
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