Hardened drop forged steel Kango 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. 21mm hex shank. Compatible with Kango K9 machines. Hardened drop forged steel Kango 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. 21mm hex shank. Compatible with Kango K9 machines.