What are the differences between drill bits for metal and wood, and how do they impact the drilling process?

Drill bits for metal are typically made of harder materials like cobalt or titanium, while drill bits for wood are usually made of high-speed steel. The differences in material impact the drilling process by affecting the speed and efficiency of drilling. Metal drill bits are designed to withstand the hardness of metal, while wood drill bits are optimized for cutting through wood fibers efficiently. Using the wrong type of drill bit can result in dulling or breaking of the bit, as well as inefficient drilling.