Ingersoll Rand Diggers are used for medium to heavy density earth or rock-laden earth. They are also great for light to heavy demolition. These tools feature time tested valve durability in dusty conditions make them one of the most reliable and requested tools in their class. Available in multiple retainer configurations, these tools include extra-long nozzles giving increased longevity. IntelliSurvey Application 93 SeriesIdeal for digging in clay, hardpan and frozen ground as well as horizontal concrete demoliton, tunneling, and bridgework.95 SeriesGreat for heavier digging, foundation work, pipeline and utility work as well as heavier concrete, bridge and brick demolition.