Versatile Compatibility: Unlock unlimited potential with the KSEIBI 619586 Core Drill Converter. Convert 1-1/4"-7 female threads to 5/8"-11 male threads effortlessly, ensuring your core drill is compatible with an extensive range of diamond core bits. A seamless fit enhances stability and provides consistent results in every application. Robust, Durable Construction: Constructed from premium hardened steel, this adapter is built for endurance. It stands up to heavy-duty use, ensuring your projects continue uninterrupted. Whether you’re working on a small DIY project or a large construction site, count on the KSEIBI 619586 for unmatched durability and performance. Universal Compatibility: Easily convert 1-1/4"-7 female threads to 5/8"-11 male threads, making your core drill more versatile and compatible with a wide range of diamond core bits. Enhanced Drilling Efficiency: Improve the performance and precision of your core drill with this essential accessory. High-Quality Materials: Trust in the robust construction made from hardened steel for long-lasting use. Safety and Stability: Ensure your drilling tasks are safe with a secure and stable connection. Ideal for Use with Diamond Core Bits: Specifically designed for optimal compatibility and performance with diamond core bits, ensuring superior drilling results in various materials. B0CGHMLXK4