single cut rock auger

single start rock auger 

bauer ,soilmec ,casagrande ,rotary drilling tools ,deep foundation pilling tools

Main application stiff to hard silt and clay, medium dense to dense sand, gravel SB-K2 is recommended in uncased bores or for bigger diameters Features Kellybox 200 mm Round shank chisel pilot bit RP4, teeth FZ and collar plate with round shank chisels wear protection: hard facing or wear