The protractor head slides onto the steel rule and provides a tool for angular measurement or transfer. Rectangular / Semicircular Head Protractor Rectangular or semicircular head protractors have a ...

Combination squares measure length, center, angular, or squareness determination, and have transfer or marking capabilities. These multiple tasks are possible because these sets have a series of ...

A protractor is used to draw and measure angles. An angle is the amount of turn between two lines. Angles are measured in degrees with the symbol °. Angles can be labelled with 3 letters (eg DEF ...