Klein Tool - Klein 635-4 4pc Heavy-Duty Nut Driver Set

Klein's Heavy-Duty Nut Driver set features through-handle, completely hollow shafts to allow for nut driving on unlimited bolt lengths, and no more bottoming out. Wrench assist provides greater torque while the magnetic tips will grab any nut appropriately. The set includes common hex sizes. Features: Through-handle, full-hollow shaft for torquing hex nuts onto threaded rod of any length; Color coding for easy identification of different sizes; Wrench-assist for additional torque; Rare Earth magnetic tip holds nut in place while fastening; Heavy duty handles and shafts exceed the torque performance of regular nut drivers; Includes 1/4-Inch, 5/16-Inch, 3/8-Inch and 7/16-Inch hex sizes; Wrench Assist For Greater Torque; Nut Drivers with through-handle, full-hollow shaft for torquing hex nuts onto threaded rod of any length; Driver handles with color coding for easy identification of different sizes; Rare-Earth magnetic tip holds nut in place while fastening - Warnings: Always wear approved eye protection.; NOT insulated. Will NOT protect against electrical shock.