Attached to our Crane borer’s, our Solid Rock Drills can drill Rock holes in 450mm, 500mm, and 600mm diameters. Additionally, being attached to our Perus or Excavators means there is the flexibility to drill dirt holes at the same time, with earth augers at any number of diameters from 300mm to 1200mm making it an efficient, versatile solution for rock holes and dirt holes.