ProSite CP5051-12 Combination Protractor

The ProSite® CP5051-12 Combination Protractor from L.S. Starrett Company provides no-math measuring for setting up miter cuts, compound cuts, supplemental angles and roof pitch references. An angle on the dial face indicates where a miter saw should be set for a cut. The tool includes a conversion table for cutting crown molding. The Combination Protractor sells for about $85.