A tranchet axe is a lithic tool made by removing a flake, known, when using this method, as a tranchet flake, parallel to the final intended cutting edge of the tool which creates a single straight edge as wide as the tool itself.
A tranchet axe is a type of stone tool that involves removing a flake to create a single, continuous cutting edge, typically parallel to the tool's intended use, which can be applied to various tasks and activities.