sdroceRyaM Cartridge Alignment Protractor Tool -Pickup Calibration Distance Gauge Protractor with Magnifier-Record LP Vinyl Turntable Phonograph Phono

Definitely is not, no.Get a simple protractor from ebayhttps://www.amazon.com/Cartridge-Protractor-Calibration-Magnifier-Record-Phonograph/dp/B09F3B17C3/?th=1And set it up so the stylus cantilever (the little tube the actual stylus is on) is exactly on the center line, when the stylus tip is on the dot. In the mean time just set it in the middle of the head shell, with both screws in line. It's safe to use that way, but just may not be ideal.