Which knuckles are considered best to use when punching?

The first two knuckles, which are typically the index and middle fingers, are considered the best to use when punching due to several anatomical and biomechanical factors. When you make contact with a target, these knuckles align more closely with the bones of the forearm, minimizing the risk of injury to the hand. This alignment allows for better force transfer, resulting in a more effective punch.

Additionally, the first two knuckles are stronger and more resilient than the others, which helps in delivering a powerful strike without compromising the integrity of the hand. Using these knuckles also provides greater control and precision in hitting a target accurately. This technique is important in martial arts and self-defense scenarios, ensuring not only that the punch has impact but that the safety of the striker is maintained.

In contrast, using the last two knuckles or all four could lead to increased risk of injury and reduced impact effectiveness, as they do not share the same alignment and strength characteristics.