Protractor Ruler, 0 180 Degree Stainless Steel Angle Measuring Instrument Rotary Finder with Swing Arm for Student Drawing, Engineering, Architectural Design, Carpentry

【Easy to Use】Measuring tool has a 6" adjustable protractor arm that can be held in place with the knurled locking nut; quickly and easily identify angles,Easy to use. 【Strong&Sturdy】Our angle measuring instrument is made of stainless steel, which is wear-resistant, corrosion-resistant, safe and non-toxic, hard to break and deform, and 【Wide Range of Applications】Applied in machinery, carpentry and homework, suitable for school, business or family.Widely used in angle measurement, length measurement, student drawing, engineering, architectural design, carpentry and so on. 【Accurate Measurement】Measuring length: 145mm, 0-180 degrees rotation, easy and precise measurement.It's easy to use and read with clear markings. 【Detail Design】Angle measure has permanently etched graduations for 0 to 180 degrees in opposite directions,long lasting., Weight: 0.1543235834 pounds, Manufacturer: Zerodis