Wolverine Skid Steer Auger Drive & Bit Attachment. Features an 'In-Line' drive design to eliminate chain and sprocket reduction. A hydraulic motor drives the auger through a sealed planetary gear reduction. Can use a wide variety of auger diameters, lengths and styles for every digging application. Comes with auger dimensions: 12 in and 18 in. Effective Dorking Depth is 35 in. Hydraulic Flow Required: 8-22 GPM. Max Cont. Operating PSI: 3000 psi