Lots of people think of driver bits — for both screws and nuts — as a commodity that doesn’t matter what kind you use, they’re all the same.
Well, truth be told, not really. And especially if your fastening tool is a cordless impact driver.
Impact drivers live up to their name and they hit hard. There is a boat-load of energy shot straight into the driver bit and that little point of steel in contact with the screw has to resist that energy and turn the screw without breaking.
