General Tools 29 Plastic Protractor and Angle Finder with Articulating Arms

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. Fine black graduations from 0 degree to 80 degrees in opposite directions. Brass lock nut.