An impact DRIVER with a 1/4" hex chuck is typically used for fastening smaller screws and bolts and similar. Further, a smaller impact WRENCH (3/8" square drive or smaller 1/2" square drive model) may not have the torque or power necessary to remove lug nuts from a vehicle. This is especially true if the lug nuts (or bolts) were installed with a pneumatic impact wrench, or are seized on. It may take several hundred foot pounds of force to break these loose- more than a impact driver or small impact wrench can provide.

In this application, a large impact wrench or breaker bar should be used.