Milwaukee 48-20-6982 - Max-Lok™ SDS-Plus 29.5 in. Extension29 1 2 in. SDS Plus extension to be used with the Max Lok system (48 20 6950). Bullets: versatility: system is compatible with any rotary hammer for drilling in tight spaces; efficiency: save time and money by leveraging your shorter, less expensive bits and rotary hammer; maximum energy transfer: maintain drilling productivity, even at 82 1 2 in.; easy to use: the connection adapter's sliding sleeves offer twist and lock security. Features