Chicago Pneumatic Combi-Hammers are versatile tools that are both a drill and a chipping hammer. A push of the rotation release button easily and quickly converts the tool to a hammer. Use Chicago Pneumatic Rock Drills in both construction and maintenance applications such as driving or setting masonry anchors, drilling holes in concrete, bricks or rocks. When used as a hammer, these tools can be used for chipping, scarifying, scaling, and cleaning up welds.