Acker - Cutter Head

Cutter heads for Hollow Stem Augers are designed with replaceable-type carbide inserts. The cutter head design allows the center plug with the pilot bit to be positioned slightly ahead of the cutter head. A hollow bore drill head allows the center plug to be withdrawn to the surface when the desired depth of the hole is reached. Center stem rods are used to connect the center plug to the center stem adapter and adapter cap of the auger string at the surface.