Review on 🔧 Optimized Positioning for Aluminium Woodworking Carpenter Clamping by Christopher Smith

So these should be 90° angles. One of the ones I ordered has an angle of 90° and the other is about 88°. Maybe a little less. I measured with other squares I had on hand and they all showed it wasn't. One that was accurate was great for getting into those hard to reach places to hold pieces together.