For AR-15/M16 Barrel Nuts, Bolt Carrier Key or action screws on any rifle. Set the dial handle to desired torque; wrench "clicks" when the number is reached.
AR-15, Issue:08, Page:070
AR-15, Issue:08, Page:072
Big Book Catalog, Issue:65, Page:068
Big Book Catalog, Issue:65, Page:070
Big Book Catalog, Issue:65, Page:452
SPECS: Chrome-plated steel. ½" (2.7cm) Drive - 17-1/8" (43.5cm) long. 1" (2.5cm) diameter handle. 30 - 150 foot pound range. U.S. made.