What is bush-hammer?

Bush-hammer is a technique used in stonecutting and concrete finishing to create a textured or patterned surface on the material. The technique involves a specialized hammer that has small, pyramid-shaped points (or "teeth") on the head. When the hammer is struck against the material, the teeth create a series of small indentations or points on the surface. These points serve to create a non-slip surface, to add texture or pattern to the material, or to remove unwanted surface imperfections. Bush-hammer is commonly used in the construction of outdoor surfaces, such as patios, walkways, and driveways, as well as in architectural and decorative applications, such as sculptural elements, columns, and brick walls.