Hollow impact-rated nutsetters have a recess in the shaft that provides space when running down nuts on long bolts and threaded rods. These impact-rated nutsetters are used with impact drivers and can also be used with power drills and power screwdrivers. Sometimes called torsion nutsetters, they absorb the force (torque) of the impact driver and transfer it to the nut or bolt. They're commonly used for overhead fastening, turning large nuts, and loosening frozen fasteners. Their head fits hex-shaped nuts and bolts.
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