Got a core drill bit, hole saw, or grinding wheel with a 5/8-inch-11 female thread, but your drill or tool has a 3/8-inch hex shank? This little adapter solves that problem. It’s a simple, solid aluminum piece that lets you connect those larger accessories to compatible corded drills, hammer drills, or even some hand tools. Perfect for DIYers or pros working with concrete, stone, tile, or glass. The hex shank locks securely into your drill chuck, and the threaded end screws right into your accessory. No more needing a special drill just for your big bits! It’s a must-have for anyone doing masonry work, installing plumbing, or tackling renovation projects. Makes your toolset way more versatile. Just one adapter in the package—keep it in your toolbox for whenever you need it.