Review on Enhanced Precision with Preciva Protractor: Stainless Steel and Multiple Functions at Your Disposal by Terrance Duncan

I liked this product from the start but after a few twists it got tighter. I loosened the adjustment a bit to allow the angle to move towards the angles I measured. The block started jumping in big increments and instead of actually rotating 0-45 degrees, it measured that hole as if I rotated it around the same gap a few times. This required re-zeroing and trying again. To put it mildly, not user friendly. During this closet and trimming project I was sometimes able to use it for multiple cuts in a row with no problem, but for most cuts I had trouble with it. Maybe I just got the loafer, but I definitely wouldn't buy it again. Didn't have time to contact the manufacturer so this is my problem.