A bricklayer's hammer is a special hammer for chipping and setting bricks and cement blocks. It has a square, flat face on one side of the head for hammering and a long chisel on the other side for chipping. It typically weighs 16 to 24 ounces and has a wooden, steel, or fiberglass handle. Bricklayer's hammers are also known as mason's hammers. They and rock picks are also used as geology rock hammers.