This 12" protractor takes error-prone calculations out of the process of miter cuts. Simply set your saw to the angle that you read. The reading is always correct. This easy-to-use tool has two scales. The red scale and red arrow show the angle for a miter joint, while the black arrow and black scale provide the angle to fit a single work piece to an angle. This tool is ideal for carpenters, plumbers, and all building trades that require the measuring and transferring of angles. Made in USA by The L.S. Starrett Company.
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