- New RAPID-LOCK single handed loading
 - Improved quick release collar prevents accidental tool release caused by vibrations or contact with the work-piece
 - Knurled collar provides 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 1/4″ Hex impact drivers
 - Converts standard 1/4″ impact drivers for use with VersaDrive™
 
These books contain critical information for the best practice use for the Alpha VersaDrive products that will help you to get the greatest efficiencies out of these tools.