ProSite 5-in-1 Combination Protractor

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