Under Cutter Blade is used to undercut raised beds of root crops such as carots, turnips, beets, onions, etc. so they may be hand pulled easily. It requires about 10hp per foot and good traction to pull it. The blade is available in 3.5' to 5' widths and can be custom ordered. The blade angle is adjustable at the foot piece. Models over 5' have a center shank (not pictured). It includes a solid stress proof toolbar and a rear parking stand. We have dug 12'' deep on level ground in clay soil.