Manual machines are tools that require human effort to operate, rather than relying on automated systems. These machines often include devices like lathes, milling machines, and drills, which are commonly used in workshops and manufacturing settings. Operators control the speed, direction, and movement of the machine to shape or cut materials like metal, wood, or plastic. The use of manual machines allows for greater precision and craftsmanship, as skilled workers can make adjustments based on their experience and intuition. While they may be slower than automated machines, manual machines are often more versatile and can be adapted for various tasks, making them valuable in many industries.