Step drill bits are ingenious in some ways. Usually, you will have to choose a specific size to drill a hole in metals. Unlike traditional bits that are of single sizes, step drills combine several bit sizes into one bit. This means that you can use the same bit for a variety of purposes. On top of that, step bits provide cleaner holes than regular twist drill bits. As you don’t have to spend time searching for the right sized bit, then you drill holes faster. Also, you don’t need to have a whole box of drill bits if you can combine many sizes into one bit.