What is a drill?
"A drill is a hand tool, power tool, or machine with a rotating cutting tip or reciprocating hammer or chisel, used for making holes." (google)
What is a drill bit?
“Drill bits are cutting tools used to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shape and can create different kinds of holes in many different materials. In order to create holes drill bits are attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.”
- Wikipedia
"A drill is a hand tool, power tool, or machine with a rotating cutting tip or reciprocating hammer or chisel, used for making holes." (google)
What is a drill bit?
“Drill bits are cutting tools used to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shape and can create different kinds of holes in many different materials. In order to create holes drill bits are attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.”
- Wikipedia