Definition
A straightedge is a tool with a perfectly straight edge used for drawing straight lines or checking the straightness of a surface. It is a fundamental tool in drafting, engineering, and woodworking. Unlike a ruler, it typically lacks markings for measuring. Think of it as a guide for precision, like a GPS for your pencil. A straightedge ensures accuracy and neatness in lines and shapes. It's the silent hero behind every flawless blueprint.