Superior Steel SC8912 1" Flat Chisel SDS-Max Hammer Steel 18" Long. Designed for use with most SDS-max® hammers. Fully hardened steel body avoids breakage and delivers increases life and durability. This bit is for concrete removal, hard surface break up and chieseling, as well as light chipping and chiseling of tile, mortar, glazing compounds, and other masonry products. Suitable for use on brick, concrete and loose stone.