300 Series is ideally suited to break-up hard and compacted soil for better water penetration and root growth. This unit is constructed of heavy-duty 4" x 8" structural tubing and is equipped with a 1"x 27" parabolic shank and designed for category 2 tractors up to 75 HP. The shank is shear-bolt protected and equipped with a high carbon heat-treated replaceable point. Models 200 and 300 are Quick Hitch compatible.