Steel Protractors

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Double graduations from 0-180° in opposite directions permitting the direct reading of angles and supplementary angles The back of the tool is flat for ease of use The blade can be locked firmly at any angle by the lock nut Satin chrome finish for ease of reading and resistance to rust Specifications Graduations 0-180¬∞ Blade Length 6" EDP No. 50127 Range 0-180¬∞ Country Of Origin United States Show more