Universal Bevel Protractor Universal bevel protractor is used to measure the precise angle of the inner and outer parts of the scribe or angle measuring. Roller Knob Furnished with a bevel edged extension blade, roller knob and fine adjustment. Measuring Range Measuring range is 0-320 degree. With high accuracy of 0.02, and easy to use. Laser engraved lines, clear reading and longer life. Premium Quality Made of high quality carbon steel material, practical and durable for a long time use. Not easy to rust, portable size for convenient carry. Easy to Storage Come with a box, so providing protection for the bevel protractor, easy to storage. Removable Removable angle gauge, more versatile, can be mounted on a height gauge.