A portable mechanical, motorized [[saw]].  It is used in logging activities and used by tree surgeons to fell [[tree|trees]] and remove [[branch|branches]] and foliage.
It's frequently seen as a weapon in horror films, often inflicting extremely bloody wounds and severing limbs.

A few characters use this as their weapon of choice, namely [[Haruna (korezom)|]], [[Juliet Starling]] and [[Denji (Chainsaw Man)|]].

h4. See also

* [[tools]]
* [[chainsword]] - use that tag if the chainsaw has a [[sword]]-like handle.
チェーンソー チェンソー