Review on 🔧 Accurate Precision Machinist: Introducing Anytime Tools 30 60 90 by Peter Sullivan

Oh yeah, they're good. Accuracy at an affordable price. The tips are all sharp and not just a square like the corner block sets so you can insert them straight into the inside corner of the square to draw a line if needed. I also used it as a makeshift main square to test the squareness of the double square. Also can be used to test the accuracy of these Chinese 320 degree protractors. A sky blue padded suitcase is a bonus. Keep them oiled and they will last forever.