Bilateral vs Unilateral Tolerance: What’s the Difference?
Every dimension on a drawing needs a tolerance, and the type you choose matters as much as the number. A bilateral tolerance like 10.00 ±0.05 allows variation on both sides of nominal. A unilateral tolerance like 10.00 +0.05/-0.00 allows it on one side only. The choice is not a style preference: it controls whether a…


















