Milwaukee 48-20-6962 - 29-1/2" Max-Lok™ SDS MAX Adapter29 1 2 in. SDS Max extension to be used with the Max Lok system. Features 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 Includes (1) Max Lok 29 1 2" SDS Max