What is the maximum allowable brake pad crack depth in relation to the pad thickness?

In the context of brake pad inspections, the maximum allowable crack depth that can be present in brake pads is defined to ensure safety and performance. A crack that goes halfway through the thickness of the pad represents a significant structural compromise. Brake pads are critical components of a vehicle's braking system, and their effectiveness diminishes as cracks penetrate deeper.

Allowing cracks to extend to this level indicates a potential failure point where the pad could break under the stresses of braking. If a crack exceeds half the thickness of the pad, it could lead to complete failure, resulting in a dangerous loss of braking capability. Therefore, maintaining a standard where no crack should exceed half the thickness helps ensure that the brake pads can function effectively while minimizing the risk of failure during operation. This standard exemplifies the balance between ensuring adequate performance and safety for vehicle operation.