What are the key differences between black oxide drill bits and titanium drill bits, and which one is more suitable for my specific drilling needs?

Black oxide drill bits are coated with black oxide to increase durability and reduce friction, while titanium drill bits are coated with titanium nitride for increased hardness and heat resistance. Titanium drill bits are generally more suitable for drilling harder materials like metal and stainless steel, while black oxide drill bits are better for general-purpose drilling in wood and plastic. Consider the material you will be drilling into when choosing between the two types of drill bits.