The CSM attachment consists of an upper sledge with locking mechanism and guide, a lower sledge with locking mechanism and guide, an adapter sledge to an RG-23 or BG-28 hydraulic rig. The rig has a rectangular Kelly system lockable for a cutting depth of 30M, a BCM 5 mix cutter gear box, and a BCM 6 mixing wheels for panel size of 94’’ x 24’’.