Hardened drop forged steel SDS Max chisel with shot blast finish. For removal of tiles and render. Also of material on a larger scale. Can be used on all masonry, stone, brick and concrete. 18mm round shank. Compatible with all SDS Max machines. Hardened drop forged steel SDS Max chisel with shot blast finish. For removal of tiles and render. Also of material on a larger scale. Can be used on all masonry, stone, brick and concrete. 18mm round shank. Compatible with all SDS Max machines.