Drilling Augers Short augers are mainly divided into the following types: 1-Conical Rock Auger 2-Flat or Butterfly Rock Auger 3-Flat or Butterfly Clay Auger 1) Conical Rock Auger There are two categories of conical rock augers: a)Single Cut Auger b)Double Cut Auger Drilling Diameter Range: 500~2500mm Main Applications: i) Single Cut and Double Cut Augers are suitable for drilling in medium to strong rock (15~60 MPa) ii) Double Cut are recommended in bigger diameters uncased boreholes Features: 1-Rock Pilot 2-Hard facing strips on flights for wear protection 3-Kelly box size as per customer demand 2) Flat or Butterfly Rock Auger: There are three categories of Flat or Butterfly Rock Auger: a)Single Cut Auger b)Double Cut Auger c)Double Cut Auger without Rock Pilot Drilling Diameter Range: 500~2500mm Main Applications: i) The Single Cut and Double Cut Augers are suitable for drilling in weak fractured rock and very dense sand and gravel (Less than 5 MPa) ii) Double Cut Augers are mainly used for bigger diameter uncased boreholes and secant piles iii) Double Cut Auger without rock pilot are recommended for fractured rock or moderately weak to moderately strong rock (5~50 MPa) Features: 1-Rock Pilot 2-Hard facing strips on flights for wear protection 3-Kelly box size as per customer demand 3) Flat or Butterfly Clay Auger There are two categories of Flat or Butterfly Rock Auger: a)Single Cut Auger b)Double Cut Auger Drilling Diameter Range: 500~2500mm Main Applications: i) The Single Cut and Double Cut Augers are suitable for drilling in clay, silt and loose to medium dense sand and gravel ii) The Single Cut and Double Cut Augers with side cutters are suitable for drilling in hard clay, silt and medium to high dense sand and gravel iii) Single Cut Augers are recommended up to coarse gravel Features: 1-Fish-tail Pilot 2-Hard facing strips on flights for wear protection 3-Kelly box size as per customer demand. Steel pallet, wooden case.
