McMillen SRR - Severe Rock Ripper - auger with bullet teeth and special boring head.
The Severe Rock Ripper auger bit is specifically designed for fracturable rock, frozen ground, and extremely compacted soils. It will not perform well in normal digging conditions. Equipped with bullet teeth, a fabricated boring head, and single flighting that is hard-faced along the outer edge.
The drop-down list shows the available auger diameters. All SRR augers ship via LTL truck freight.