Starrett® bevel protractors have revolving turrets with direct reading double graduations a full 0 - 180 deg in opposite directions. This permits direct reading of angles above or below the blade. Equipped with a handy spirit level.

Starrett® Bevel Protractor, Non-Reversible, Series: 12 Series, 0 to 180 deg Measuring, 7 in Length, 12 in L x 1 in W x 3/32 in THK Blade, Graduations: 4R - 8ths, 16ths, Quick-Reading, 32nds, 64ths, Cast Iron, Black Wrinkle

• Direct reading 0 - 180 deg in opposite directions, permitting the direct reading of angles and supplementary angles
• Protractor heads are made of stable cast iron and finished with a choice of attractive black wrinkle finish or smooth black finish
• Tempered steel blades with accurate, machine-divided graduations
• A spirit level indicates when the base reference surface is level - a feature not usually available on comparable protractors
• Regular finish blade
• Starrett® satin chrome blades and protractor heads for easier reading are available (on 12 in sizes)

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Starrett_C493B_Catalog.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Starrett_C493B_Catalog.pdf