Mainly speaking, there are some of the hand positions widely used in Shao Lin Quan, six are depicted below, the Willow Leaf Palm, the Dragon Claw, Fist (vertical and horizontal), the Hook, and the Tiger Claw.
Art Work: Guy Robinson of Atlanta, Georgia Willow Leaf Palm by Marilyn Cooper
Parts of the Fist: 1. Back, 2. Face, 3. Heart, 4. Eye, 5. Heel.
Parts of the Willow Leaf Palm: 1. Back, 2. Heart, 3. Tip, 4. Edge.
Parts of the Hook: 1. Back, 2. Face, 3. Heart, 4. Tip.