The WORD DTH Auger Drive Drilling Kit comes with options such as an 
Adaptor,
Air Swivel,
Shock Sub,
DTH Hammer (2.5", 3.5" or 4"),
DTH Rock Drill Bit
and a 1.5" ID Air Hose 
 
The equipment attaches to your standard Auger Drive Head on your Skid Steer or Hydraulic Excavator. It is ideal for drilling boreholes of 76mm to 152mm in diameter.
Borehole depths to 1.8m.
Custom packages adpat to your current equipment.
Optiona available for special applications and depths.