An impact driver is a tool that delivers a strong, sudden rotational and downward force, often used by mechanics to loosen larger screws (bolts) and nuts that are corrosively “frozen” or over-torqued.
An impact driver is a tool that delivers a strong, sudden rotational and downward force, often used by mechanics to loosen larger screws (bolts) and nuts that are corrosively “frozen” or over-torqued.