This upgraded VersaDrive Impact Wrench adapter features: New Rapid-Lock, single handed loading action Improved Quick Release collar that prevents accidental tool release caused by vibrations or contact with the workpiece Knurled collar – ultimate grip in greasy or damp conditions High quality, Heavy Duty steel components Increased strength for withstanding the drive forces from the latest generation of high torque 1/2 in. Impact Wrenches Converts standard 1/2 in. Impact Wrenches for use with VersaDriveSupplied with retention ring and pin