Which of the following is a property-enhancing operation: a) drilling b) extrusion c) forging d) grinding el heat treatment f) painting o \( a \)

Did you know that drilling has been around for thousands of years? Ancient Egyptians used rudimentary drilling techniques to create holes in wood and stone for various purposes. Today, drilling remains a crucial part of many industrial processes, enhancing the properties of materials by allowing for precise modifications. In real-world applications, drilling is essential in several fields, including construction, manufacturing, and even medicine. For example, it's used in creating holes for electrical wiring, installing fixtures, or even in the medical field for precision surgeries. So next time you think of drilling, remember its diverse and impactful roles!