Master grade ar15 crowfoot armorer's wrenches: now you can say i've got a wrench for that! no more rigging and adapting generic wrenches to complete your builds.Master-fit 1/2" drive crowfoot wrenches are purpose built and specialized for precise fitment to confidently deliver torque to the most common mil-spec assembly nuts.Titanium coated stainless steel construction provides tight tolerances for solid nut-gripping strength and enhanced no-slip tool control.