Review on Suncala Stainless Steel Digital Protractor with Advanced Functionality by Robert Correa

good price for home use but not for a pro. At work I dabbled in Mitutoyo calibers ($$$). This caliber requires a zero adjustment every time, and the corner lock moves .15 to .25 when tightened. There is no sure lock and it takes a lot of torque to lock it without changing the angle during working movements. Price: 5 stars Accuracy: 4 stars Clasp: 3 stars