This adapter converts standard 1/2\" Impact Wrenches for use with VersaDrive The 111130-012A VersaDrive Impact Wrench Adapter features New Rapid-Lock, single-handed loading action and an Improved Quick Release collar that prevents accidental tool release caused by vibrations or contact with the workpiece. 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\" Impact Wrenches Converts standard 1/2 Impact Wrenches for use with VersaDrive Rated to 650nm Supplied with retention ring and pin 55mm OAL Specification: Drive size: 1/2 in Diameter: 28mm Length: 55mm