[Compatibility] This product can seamlessly adapt 1-1/4inch-7 male thread to SDS Max shank/SDS Plus 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 ensure smooth and efficient operation. [Steel Material] This 1-1/4inch-7 male to SDS max/Plus shank adapter relies on premium hardened steel construction for enduring and longevity, ensuring long-term stable performance. [Safe Connection] This adapter adopts secure and stable connection and you can rest assured that your drilling tasks will be performed safely. [For Rotary Mode] This product is customized for use in rotary mode, which prioritizes safety 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/B:SDS Plus Shank Colour:As Shown Material:40cr Package Contents: 1 * Core Drill Bit Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.