The Skid Steer Tree Shear Attachment is capable of cutting 12" trees. It is powered by a 5" x 12" cylinder with a fixed non-rotating base. Cutting blade is made of 1" thick blade. Make quick work of clearing a large area with our durable Tree Shear attachment. This unit will work with any Skid Steer loader with a min of 12 gpm hydraulic flow. Cutting speed time will increase as the flow increases.