SDS-max chisel 1.High quality hardened steel. Optimum denudation capacity by maximum energy transmission of the hammer drill to the chisel edge. 2. Applications: for chiseling in concrete, masonry, stone and bricks. 3.Suitable in all hammer drills with SDSmax adaptor and two grove adaptor like Hilti TE 706 AVR, TE 56, TE 56 ATC, TE 76 ATC, TE 42 to 92.