Concrete and masonry drills, according to ISO 5468, feature carbide tips that are high temperature brazed. They have a wide and deep supported carbide plate, designed for chip removal, and an asymmetrically shaped drill helix for optimal dust transport. These hammer resistant high performance drills are suitable for all rotary and percussion drilling machines. They have a black burnished bright color and a ground surface, making them ideal for granite, concrete, masonry, natural and artificial stone, and sand-lime brick.