The 3 piece sds chisel bit set are used for wedging, breaking and carving purposes, conveniently connecting into your drill and eliminating the need to use hand chisels so you can complete your diy projects faster. Made from 40cr, these chisel bits are suitable for wood, masonry, stone and metal work. They feature a quick change sds shank, which fits into a spring loaded chuck, and is especially designed for hammer drilling applications into stone and concrete with a masonry drill.