Why were machine tools essential to mass production during the Industrial Revolution?

Machine tools were essential to mass production during the Industrial Revolution because they provided the precision necessary to create interchangeable parts in large quantities.12

Before these innovations, goods were crafted using hand tools, which limited consistency and production speed. The development of power-driven machine tools—such as the screw-cutting engine lathe, the milling machine, and the shaper—allowed manufacturers to produce dimensionally accurate components at a low cost with a smaller workforce.12

By utilizing these tools alongside jigs and fixtures to guide the work, manufacturers could ensure that identical parts could be substituted for one another. This capability transformed the organization of work and laid the foundation for the modern factory system and an industrialized society.12