Description: 【Construction】: Made from high strength metal, this Drill Adapter Kit is designed to withstand rigorous drilling applications in concrete, reinforced concrete, and masonry 【Versatile Compatibility】: Core Drill Adapter for Core Bits for a variety of demanding tasks, ensuring reliable performance across different materials 【Optimal Size】: With dimensions of 24.9cm x 17.7cm, Core Drill Adapter for Core Bits offers a compact yet efficient design suitable for various drilling needs 【User Friendly Design】: Engineered for ease of use, making Drill Adapter Kit simple to attach and operate 【Reliable Performance】: Drill Adapter Kit Built to handle tough conditions while maintaining precision and efficiency in every project Specification:Material :Metal Round handle: Round handle Plus Water injector to 1-1/4-7 Size Chart: 24.9cmx17.7cm/9.80inchx6.97inch Package Includes: 1 Drill Adapter Kit Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.