[Compatibility This product can seamlessly adapt 1-1/4inch-7 male thread to SDS Max shank, convenient and easy to connect diamond coring drill bits for efficient drilling. [Easy to Use This diamond core drill bit connect converter adopts user-friendly design and easy to use, simplifying your drilling process. It is designed for easy connection to smooth and efficient operation. [Steel Material This 1-1/4inch-7 male to SDS max shank adapter relies on premium hardened steel construction for enduring and , ensuring long-term stable performance. [Safe Connection This adapter adopts secure and stable connection and you can rest that your drilling tasks will be performed safely. [For Rotary Mode This product is customized for use in rotary mode, which prioritizes and performance by avoiding hammer mode to protect your tools and workpieces. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Type:A:SDS MAX Shank Colour:As Shown Material:40cr Package Contents: 1 * Core Drill Bit Adapter Only the above package content, other products are not included.