Features: Engineered with alloy for wear resistance, these masonry drill bits deliver superior cutting power through concrete, stone, and hard materials, essential for impacts drills and heavy duty drilling tasks. The 8 piece set features precisions ground spirals flutes (5-8mm sizes) and anti slip tips, ensuring accurate positioning and compatibility with most rotary hammers and power tool for versatile applications. Ideal for professional contractors tackling construction projects and DIYer enthusiasts handling home improvements, these bits withstand rigorous use in workshops and job site. Perfect for installing wall mounted fixtures, creating anchors points in concrete wall, or executing demolition tasks during building renovations and infrastructure development. Enhanced with corrosions resistant coating, these alloy drill bits maintain good performances in humid environments while the storage case prevents loss and organizes tools for mobile work crews. Specifications: Component: Alloy Size: 0.5x11cm, 0.6x11cm, 0.8x11cm, 0.6x16cm, 0.8x16cm, 1x16cm, 1.2x16cm, 0.8x21cm Package Includes: 8Pcs Masonry Drill Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.