General description Drilling accurately is a breeze with the Accessories 5x Expert HEX-9 MultiConstruction Drill Bit Sets. These drill bits feature patented Centering Geometry technology, making them up to 5 times more precise than standard drill bits. They are designed for versatility, allowing you to drill holes in a variety of materials. Technical specifications Set includes: 5-piece Expert MultiConstruction HEX-9 drill bit set Drill bit sizes: 4 mm, 5 mm, 6 mm, 6 mm, 8 mm Shank type: Hexagonal for maximum power transfer Usage Can be used in hammer mode on concrete and stone Can be used in rotary mode for brick, tile, sheet metal, wood, and plastic