Upgrade your drilling setup with the HBKEEN 2-Pack Core Drill Bit Adapter Set, featuring a mixed combination of adapters: one 5/8"-11 male to SDS Plus shank adapter, and one 5/8"-11 male to 3/8" triangle shank adapter. These core drill bit adapters are designed to convert dry diamond core drill bits to work seamlessly with standard electric drills or SDS Plus rotary hammers. Whether you're working on tile, brick, masonry, or concrete, this adapter set gives you unmatched flexibility. Made from premium heat-treated steel, each drill bit adapter ensures high torque transfer, a secure fit, and long-lasting durability. The triangle shank adapter provides stability in standard 3-jaw chucks, while the SDS Plus shank offers secure engagement with rotary hammers. This dry core drill conversion kit is ideal for contractors, electricians, plumbers, and heavy-duty DIY users.