Chainsaw
A chainsaw (or chain saw) is a portable, motorized saw with a set of teeth attached to a rotating chain that runs along a guide bar. Commonly powered by gasoline or electricity, it is widely used for tree felling, limbing, bucking, pruning, harvesting firewood, carving, and cutting materials like concrete and ice. The earliest ancestors of modern chainsaws were used in surgical procedures, while the first wood-cutting chainsaw patents emerged in the late 19th century. A typical chainsaw consists of an engine, drive mechanism, guide bar, cutting chain, tensioner, and safety features. Over time, designs have evolved to include chain brakes, anti-vibration systems, and ergonomic enhancements, improving operator safety and usability.
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