16 Drilling Rigs For Bored Piles,Caisson,Contiguous,Secant & FCA Piles. Hole diameters range from 300mm - 3000mm to a depth in excess of 60 metres. Service: Caissons, Coring, Soil Nailing. Kind: Rotary, Vertical. Type: Commercial, Government, Industrial, Marine. Place: Driveways, Foundations, Railway Lines, Roads. Concern: Ground Stabilisation. Industry: Construction, Engineering, Mining, Telecommunications