Alpen-Drill-Bits-Parts-Hammer-drill-bit-set-632492-Alpen-80704100100-Alpen-s-80704100100-carbide-hammer-drill-bit-set-includes-eight-pieces-with-sizes-ranging-from-5mm-to-12mm-This-set-features-SDS-Plus-shanks-ideal-for-drilling-into-stone-masonry-and-brickwork-The-high-quality-carbide-composition-ensures-durability-and-efficiency-in-demanding-drilling-applications-Alpen-80704100100-SDS-Plus-8-piece-Hammer-Drill-Bit-Set-Carbide-5-12mm