34 piece, impact ready, screwdriving bit set, consists of the most commonly used bits, can be used with impact tools rated for up to 2,000 in/lb of torque, set consists of a variety of different tips, including phillips, square drive & flat head bits: (1) 1" ph1, (4) 1" ph2, (4) 1" pr2, (1) 1" ph3, (1) 2" ph2, (1) 3-1/2" ph2, (1) 1" sq1, (4) 1" sq2, (1) 1" sq3, (1) 2" sq2, (1) 3-1/2" sq2, (1) 1" sl6, (2) 1" sl8, (1) 1" sl10, (1) 2" sl8, (1) 3 -1/2" sl8, 1 each: t15, t 20, t25, t30 1" torx bits, 1 each: 1/4, 5/16, 3/8" nutdrivers, (1) magnetic bit tip holder & storage case.