Auger Finger Bit

A tough, multi-purpose auger head for full range drilling. Uses replaceable cone-shaped carbide insert bits depending upon the formation requirements. Bits are designed to revolve during the cutting action for a more uniform wear pattern and longer service life. Recommended for abrasive conditions and difficult hard formations. Note: Bits are furnished with lock rings installed. Drill head O.D. is approximately 10% larger than corresponding auger flight O.D. Sizes are identified by the hole size, not actual flight diameter.