What is taperule?

A taperule, also known as a drafting taper or an engineering taper, is a measuring tool used in engineering and design. It is a triangular measuring instrument made of metal, plastic, or wood, which has a gradual taper from the base to the tip.

The taper rule is used to measure and draw lines at specific angles, and to create precise measurements for objects with non-linear shapes. It features markings along its length of varying sizes, with each side of the triangle having different scales. Some taperules also feature conversion tables for converting measurements from one unit to another.

One of the unique features of a taperule is its ability to measure and mark angles without the need for additional tools. It is commonly used in carpentry, metalworking, and machining to produce precise measurements and angles.

Taperules come in various sizes, with the most common ones ranging from around six inches to two feet in length. They can be purchased from hardware and specialty stores, and are relatively inexpensive compared to other measuring tools.