Plural of hacksaw; fine-toothed saws with a narrow blade, typically used for cutting metal or hard materials.
From 'hack' (to cut) + 'saw' (cutting tool). The hacksaw emerged in the 19th century as metalworking became more common and craftspeople needed a saw that could cut metal efficiently.
The hacksaw is a beautiful example of tool evolution—metalworkers discovered that a blade with very fine, hard teeth worked much better on metal than wood saws, and the design is basically unchanged after 150 years.
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