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在弓形锯架上使用的钢锯条,往往在磨坏前便弯曲折断而废弃。这里介绍一种利用废断锯条的方法,如图所示。可做一个手把式锯架,将断锯条换个方向装紧在锯架里,就做成了
The hacksaw blades used on the bow saws are often bent and scrapped before being worn. Here’s a way to use a broken saw blade, as shown. A hand-held saw frame can be made, and the broken saw blade can be fastened in the saw frame in a different direction.