Impact Tough, 8 Piece, 2", Torx Power Bit Set With Clip For Custom Case System, Set Consists Of: (1) T15, (2) T20, (3) T25, (1) T30, (1) T40, Provides 10X Life Over Standard Impact Bits, X-Tended Torsion Zone Helps To Absorb High Torque Of New Impact Drivers, Customizable, Convenient Bit Clip Allows Users To Snap In/Snap Out Precisely Bits That They Need, Tilt-In/Tilt-Out Case Mechanism Allows Easier Access To Bits, Precision Engineered Nutsetter Heads Deliver A Tighter Fit & Less Damage To Screw, Heat Treated Bit Manufacturing Provides Stronger Bit, High Visibility Bit Sleeve & Markings Makes Finding Correct Bit For Job Easier, Durable Case Features A Secure Case Latch & Rubber Bumpers.