Need to use SDS-Max drill bits with your SDS-Plus rotary hammer? This Regiis Tech adapter makes it easy. Made from tough alloy steel, it converts your SDS-Plus tool to accept larger SDS-Max bits, so you don't have to buy a whole new drill. It's 8-1/4 inches long, giving you plenty of reach for drilling into concrete, stone, or brick during demolition, construction, or DIY projects. The sturdy construction helps reduce vibration and provides a secure fit, so you can work efficiently without the bit slipping. Whether you're a contractor on a job site or a homeowner tackling a renovation, this adapter is a simple, cost-effective way to expand your tool's compatibility. Just attach it to your SDS-Plus hammer drill, insert an SDS-Max bit, and you're ready to go. Handy for drilling anchor holes, installing fixtures, or any heavy-duty drilling task.