The Stanley Fatmax 9-Piece 110mm & 160mm SDS Plus Drill Bit Set contains a variety of drill bits suitable for SDS hammer drills. Featuring SDS Plus Connection drill bits for SDS PLUS machines drilling concrete and a connectable case that allows for multiple sets to be stacked and locked together. Perfect for heavier duty drilling applications with a sds plus drill for a variety of applications including installation of shelves curtain rails garden gates or outside lights and garden decoration. Can be used on concrete masonry brick walls breeze blocks.