With this hand you can clutch objects such as a ball, you can move the thumb out to one side and grip objects with the index finger in the way you do when opening a lock with a key, and you can wrap your fingers around an object in what we call the power grip like the one you use when you hold a hammer or a microphone.  -   Paul Chappell     Quotes
With this hand you can clutch objects such as a ball, you can move the thumb out to one side and grip objects with the index finger in the way you do when opening a lock with a key, and you can wrap your fingers around an object in what we call the power grip like the one you use when you hold a hammer or a microphone. Paul Chappell
 Clutch Fingers