Impact Drivers Vs Drills

impact drivers
(Impact driver) An impact driver is a tool that delivers a strong, sudden rotational and downward force. In conjunction with toughened screwdriver bits and socket sets, they are often used by mechanics to loosen larger screws (bolts) and nuts that are corrosively "frozen" or over-torqued.

drills
(drill) a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
(drill) bore: make a hole, especially with a pointed power or hand tool; "don't drill here, there's a gas pipe"; "drill a hole into the wall"; "drill for oil"; "carpenter bees are boring holes into the wall"
(drill) similar to the mandrill but smaller and less brightly colored