Versatile tasks: The electric hammer drill for concrete tools has multiple functions and can efficiently handle chiseling and finishing work on stone slabs, bridges, walls, concrete and cement sidewalks. This is an ideal tool for the construction and decoration fields for performing multi-stage operations. Stable and precise: Placing concrete with a square hollow head design increases the surface area, stability, and precision during operation, making each chisel precise and error-free, and improving the efficiency and quality of the work. Standard fit: The square tip design follows standard specifications, with a uniform shank diameter, stable and reliable installation, and can fit various power tools without additional adjustments, providing professionals with a convenient replacement and usage experience. Efficient and labor-saving: Concrete finishing tools using this sleeve drill bit for grinding and finishing concrete offer excellent performance and exceptional efficiency, significantly reducing labor intensity, making heavy-duty operations easy and efficient, and helping to quickly complete engineering tasks. Material: Concrete chisel made from Made from carefully selected high-quality steel, it exhibits excellent toughness and wear resistance, and does not deform or wear easily even after long-term use, ensuring the drill bit's durability and stability.