6 stainless steel pivoting arm. The improved Model 1702 (Patent Pending) displays absolute and relative angle measurements in a large, easy-to-read LCD window. This display offers a hold function and can be inverted 180? for easy reading when the tool is upside down. Designed in-house by General?s engineering team, this precision specialty tool is perfect for installing crown molding, cabinetry, counters, staircases, roofs, windows or flooring. It features a 6 (150mm) stainless steel pivoting protractor arm with a knurled locking nut and one-button zero calibration, which ensures accurate readings every time. - Digital Precision Protractor General Tools Digital Protractor (1702)