Setting angles was never this elegant or accurate. This machined stainless steel protractor features an 11-1/2" long bar with 2-7/8" diameter dial with markings in minutes and degrees and a magnifying screen to increase ease of use and accuracy. The easy rotating dial fits on bar quickly and goes right to work and the locking and micro adjusting knobs are knurled for ease of use. This is ideal for machine and jig set-up where accuracy is essential. Comes with a foam lined, molded plastic case.