0-180 Degrees Round Head Rotary Protractor Single Arm 150mm 200mm Two Arms 250mm Stainless Steel Angle Ruler Bevel Squar

Features Material stainless steel precision digital scale rulerStainless steel ruler edge have been polished smooth to protect hand use0 180Surface useg laser engraving easy read durableand precise angle measurementThree Size Single Arm 90 150mm 90X200mm Two Arms 90 250mm250mm Two Arms Protractor has a fixed ruler and a moving rulerFixed ruler double scale Adjust the Nut you can fix the angleProtractor Uses engineering angle measurement student drawing architectural design carpentry length measurement Specification Material Stainless steel Suface Treatment PolishingProtractor Accuracy 1degreeSize 90 150mm 90X200mm 90 250mmWeight 90 150mm 85g 90X200mm 99g 90 250mm 169g Package includes 1 0 180 Protractor