Milwaukee 48-20-6950 - Max-Lok™ Connection AdapterDrill deeper and in tight spaces with confidence by extending your SDS Max drill and core bits up to 82 1 2 in. with the Milwaukee Max Lok connection adapter. Features Allows for drilling in tight spaces Extends SDS Max drill and core bits Maximum energy transfer maintains drilling productivity Use with Max Lok extensions For use with SDS Max drill and core bits Warranty None