What is a cordless impact driver?
A cordless impact driver is a power tool designed to insert and remove screws and other fasteners, as well as drill holes.
Compared to a cordless screwdriver or drill driver, an impact driver can deliver a much higher level of torque (turning force) due to its impact function. This enables it to drive larger screws more quickly and work with tougher materials.
A cordless impact driver runs from a rechargeable battery, so there is no need for a power cable.