Angle Ruler 0-320 Degree Universal Protractor Precision Goniometer Angle Finder Measuring Tools Caliper ,Easy to Use

1. 100% brand new and hi-gh quality. 2.Suitable for measuring the inner and outer angle for parts. 3. and high accuracy . 4.Size: About 150 x 150mm (with box) 5.The scale is engraving.Equipped with a bevel edge, a roller knob and a fine tune.