General"s Protractor is a practical tool for measuring and duplicating difficult angles where a standard protractor or t-bevel cannot fit. The Protractor works on outside, inside, and sloped angles from 0 to 165 degrees. The four-piece design adds additional versatility for measuring particularly difficult angles. Features: * Transfer odd angles to your miter saw * Measure and mark the degrees of an angle on outside, inside, and sloped angles * Fine black graduations from 0 degrees to 165 degrees in opposite directions * Brass lock nut What"s In The Box: * General Tools 29 Outside, Inside, and Sloped Angle Protractor