Rent skid steer attachments and other earthmoving equipment from United Rentals. Effortlessly break up rock, soils and more with this auger system for your skid steer. This rock auger has hard carbide bullet-tooth and heavy-duty tubing to break through the most rigid materials. Its 18" diameter makes it a versatile instrument for your various jobs. Trust United Rentals with your digging and earthmoving work.