hammer for roughing down stone surfaces. Also, the finish applied to cut stone by a bush hammer creating a decorative dimpled surface.
A percussive hammer with rows of pyramid-shaped points used to roughen or profile a concrete surface.
In stone dressing, a steel hammer used in finishing the harder stones; it has a square-ended prismatic head divided into a number of pyramidal points.
A bush hammer is a masonry tool used to texturize stone and concrete. Bush hammers exist in many forms, from simple hand-held hammers to large electric machines, but the basic functional property of the tool is always the same - a grid of conical or pyramidal points at the end of a large metal slug. The repeated impact of these points into stone or concrete creates a rough, pockmarked texture that resembles naturally weathered rock.