Which type of hammer is best used for removing slag?

Using a chipping hammer for removing slag is optimal due to its design and functionality. A chipping hammer is specifically constructed with a narrow, pointed end that can effectively chip away and dislodge slag from welded surfaces. Slag is often a byproduct of the welding process, and it needs to be cleared for a clean finish and to ensure the integrity of the weld.

The chipping hammer's lightweight nature and the ability to control the force applied make it effective for precision work in removing slag without damaging the underlying weld. The sharp point is particularly helpful for reaching into tight spots and removing stubborn slag deposits.

On the other hand, other hammers like the ball peen hammer, claw hammer, and sledge hammer lack the pointed design and precision needed for effective slag removal. While they may have their uses in different contexts, they are not optimized for this specific task.