Designed to handle the most difficult drilling conditions, this auger is the evolution of years of drilling experience; it has been studied to work in very hard rock strata having a compressive strength of more than 100 MPa. The arrangement of chisels is optimized for reaching excellent cutting performance, the flights pitch has been specifically designed to get better output characteristics for the high torque drilling rigs in order to improve material handling.
Central pipe Ø 273 mm · thickness = 30mm
made in special steel · upper/lower flights thickness = 30/50 mm
Betek round shank chisels D.30/38mm
200x200mm · 130x130mm · other sizes on request