Description: 【Sturdy Construction】: Made from carbon steel and alloy, this Concrete Hole Opener offers a sturdy and wear resistant structure, ensuring long term durability 【Effortless Operating】: Designed for simplicity, this Concrete Hole Opener allows for quick and easy hole setting, making it great for both professionals and DIY enthusiasts 【Stable and Powerful】: With its high hardness and resistance to deformation, this Concrete Hole Opener provides stable and powerful drill performance over time 【Efficient Chip Removal】: Equipped with chip removal holes, it ensures smooth debris clearance to prevent clogging, allowing for efficient drill 【Versatile Application】: Wonderfully suited for various types of brick wall structures, such as cement walls and brick walls, making it a versatile addition to your tool box Size Chart: As Picture Package Includes: 1 Concrete Hole Opener Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.