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 Staedtler® Protractor The protractor has 1/2° graduations and open center. Protractor is 180° and made of plastic with beveled edges. |
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Staedtler® Triangle Protractor High quality hardened stainless steel with polish finish with acid-etched color coded inch/metric graduations. Cork backing prevents slipping and raises ruler from work surface to prevent in smearing. Convenient built-in hang hole. |