From design to machining to quality control, the robust line of specialty tools is crafted with the final application in mind. Backed by the combined knowledge of our experienced team, this means professionals can rely on these Empire tools to get the job done with less effort. The Empire 2791 6 in. Plastic protractor/angle finder with brass hardware offers quick measurement and transfer of both inside and outside sloped angles. It is a multi-purpose tool and is ideal for miter angle layout.