40-piece impact ready screwdriving set. FlexTorq allows bit to flex up to 15 deg (degree). 10X Magnetic Screw Lock minimizes drops and reduces wobbles. Contains all the most commonly used drill/driver bits including (1) 3/8" nut setter (1) 1/4" nut setter, (1) 5/16" nut setter, (1) impact ready sleeve, (1) 3" impact ready screw lock holder, (6) 2" PH2 IR, (1) 2" SQ2 IR, (1) 2" T25 IR, (1) 2" SL8 IR, (4) 1" PH2 IR, (2) 1" SL8 IR, (1) 1" SL6 IR, (1) 1" PH1 IR, (1) 1" PH3 IR, (1) 1" SL10 IR, (3) 1" PH2 IR, (1) 1" T15 IR, (3) 1" T20 IR, (3) 1" T25 IR, (1) 1" T30 IR, (2) 1" SQ2 IR, (1) 1" SQ3 IR, (1) 1" SQ1 IR, (1) 3.5" PH2 IR, and storage case.