Impact Tough, 4 Piece, 1-7/8", Nutsetter Set, Consists Of: 1/4", 5/16", 3/8" & 7/16" Bits, Bit Design 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 The 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 The Screw, Heat Treated Bit Manufacturing Provides Stronger Bit, High-Visibility Bit Sleeve & Markings Makes Finding The Correct Bit For The Job Easier, Durable Case Features Secure Case Latch & Rubber Bumpers.