I bought this joint chisel to clean up worn mortar joints before backfilling. The chisel tip design allows for precise grout removal and reduces the likelihood of sticking which can lead to unintended movement of the bricks. This was quick and, in combination with a cold chisel, gave excellent results. An added bonus is that this bit is MADE IN the USA which is a testament to its quality. A good example of how using the right tool for the job makes a difference.