Designed for changing hammer drill attachments. A strong adapter is useful when you need to change the attachment of your hammer drill. That's why we developed the robust PRO Hammer Adapter. With the PRO Hammer Adapter, you can use an SDS plus attachment on a spline shaft hammer drill or modify your SDS max drill to accommodate SDS plus, shank, and Morse taper attachments. We made the adapters from hardened metal to ensure they are stable enough for the toughest applications. Compatible with all SDS max hammer drills.