What are some of the advantages of Vernier calipers over other measurement tools? Vernier calipers have been a staple in metrology tool sets for decades. These traditional tools provide extreme precision and accuracy in the measurements they take. Very adaptable, Vernier calipers can be used to measure inside and outside dimensions of a part as well as depth dimensions. Vernier calipers come with twin scales such that a main scale can be used with the secondary scale when measuring, thus eliminating the need for any external device like a ruler. Built using stainless steel, these tools are incredibly durable and made to last a lifetime by being resistant to damage and corrosion. Finally, since Vernier calipers are commonly used, they are also commonly made, which makes pricing competitive and low.