FeaturesVersatility system is compatible with any rotary hammer for drilling in tight spacesEfficiency save time and money by leveraging your shorter, less expensive bits and rotary hammerMaximum energy transfer maintain drilling productivity, even at 82-1/2 inEasy to use the connection adapter's sliding sleeves offer twist and lock securityFor drilling in tight spaces, extends SDS Max drill and core bits, maximum energy transfer maintains drilling and productivity