2In1 Electronic Protractor Digital Goniometer Angle Finder Miter Gauge Ruler New,Gauge Ruler New 2In1 Electronic Protractor Digital Goniometer Angle Finder Miter, ensuring you never lose your reading, and a reverse reading capability for those hard to calculate angles, 1 x Digital Angle Ruler, is provided once the item is dispatched,Features a hold function, Miter Gauge Ruler New 2In1 Electronic Protractor Digital Goniometer Angle Finder.