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鋸是一類有齒,將固體材料切割成各種長度或形狀的工具。鋸通常是金屬製品。
鋸的齒稱為鋸齒。鋸大體上分為手動及機器發動二種,機器發動的鋸使用的能源有電,水,蒸汽等。
而有時候鋸會被用來表演音樂。
依考古学家发现,中华民族早在新石器时代就会加工和使用带齿的石镰和蚌镰,这些是锯子的雏形。周朝已有人使用铜锯,“锯”字也早已出现。另外中國有鋸子是魯班發明的傳說。
手用鋸子的基本構造如下:
手動鋸子:
機器發動的鋸:
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This article uses material from the Wikipedia article "鋸", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia
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