Taken off the internet: "Fine motor coordination of the hand progresses in a definite pattern. At 6-7 months the hand is used as a rake and objects are raked into the palm with the fingers. At 8-9 months the thumb and the radial fingers are used to grasp an object and smaller objects are picked up. At 10-12 months, the fine pincer grasp is developed. This enables an infant to pick up a small object between the distal thumb and index finger."