Double-start drilling bucket with revolving hinged bottom gate, round shank chisels, calibrating cutter and pilot bit.
No. of cutters - double-start
double-start
Pilot - Round shank chisel
Round shank chisel
Casing - uncased
uncased
Range of application - Very densely consolidated non-cohesive soils, low strength rock up to approx. 50 Mpa and secant bored piled walls.
Very densely consolidated non-cohesive soils, low strength rock up to approx. 50 Mpa and secant bored piled walls.
Equipment - Kelly box 200 mm, round shank chisels, round shank chisel pilot bit, automatic opening mechanism in heavy-duty version with guided opening rod, calibration chisel, ventilation channel, hardfacing as wear protection
Kelly box 200 mm, round shank chisels, round shank chisel pilot bit, automatic opening mechanism in heavy-duty version with guided opening rod, calibration chisel, ventilation channel, hardfacing as wear protection