Application: metal working layout. Provides a broad dent in marking intersecting center lines, hole locations, and pilot drill starting point. One-piece design for strength and durability. Made from S2 steel and specially heat-treated for greater strength and durability. Modified parabolic striking end to help reduce mushrooming and chipping. Black oxide finish to help prevent rust corrosion; extending tool life and performance. A polished identification panel on one of the flats is marked with the tool number and size in a black inlay.