Protractor Head

The Starrett PR-1224W Protractor Head, a reversible protractor head made of cast iron with a black wrinkle finish, attaches to combination squares, combination sets, and bevel protractors and fits Starrett blades 12″ and longer. It has revolving turrets with direct-reading double graduations, 0 to 180° in opposite directions, for accurate reading of angles above or below the blade. The protractor head is reversible, with shoulders on both the front and back for reading on both sides.

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