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Mitutoyo Protractor Semi-Circular 6 in Non-Grad$42.22
These manual-reading protractors resemble basic school-style protractors. They have a square or round head with a 180 arc marked on the body. Select models include a blade that may be etched with graduations, while others may require a rule or straight edge to read accurately.
These protractors are commonly used for woodworking and metalworking applications.