The chisel allows for easy, if slightly dusty, parting of a single brick in a brick wall by rubbing the mortar around the brick to the depth of the brick. This made the job quick and easy. The racquet does not look worn or dull. I have used it on mild hydraulic lime mortar and it may be less effective on cement based mortar. I would recommend this tool for manual methods, drilling holes or grinding wheels on masonry. It's long enough to remove mortar to a depth of 4 inches, the width of a standard brick, without damaging the brick, and it only takes a minute or two. For this purpose, a shorter drill from the same manufacturer can be used to remove a controlled amount of grout. reallocation.