The Idea of Interchangeable Parts

The idea of interchangeable parts beganto spread the united states government demanded that anyone that was going to supply it with armaments and weapons had to build them using interchangeable parts. If one person wants a three quarter inch bolt to be one size, and some one else wants it to be a different size, they're not going to fit. In order to make a better car, a car without creaks and rattles, a car that's going to drive a hundred thousand miles, not 20 thousand miles,. You have to raise your standards. You have to make the tolerances more specific. The key is being clear about the specification at every step along the way.