Row Crop Cultivator Sweep High-Carbon, Heat-Treated Steel. 54° Stem Angle. 7/16” Bolt holes (2). 2” Hole spacing. Center hole for 5/8" carriage bolt. Patented design utilizes 70% of the cutting blade/edge inclined at an optimum angle of 30°. Requires 35% - 50% less load weight on the machine to penetrate hard soil zones when compared to conventional chisel plow sweeps. Designed for high-speed cultivation of growing crops. Row Crop Cultivator Sweep Black Row Crop Cultivator Sweep High-Carbon, Heat-Treated Steel. 54° Stem Angle. 7/16” Bolt holes (2). 2” Hole spacing. Center hole for 5/8" carriage bolt. Patented design utilizes 70% of the cutting blade/edge inclined at an optimum angle of 30°. Requires 35% - 50% less load weight on the machine to penetrate hard soil zones when compared to conventional chisel plow sweeps. Designed for high-speed cultivation of growing crops.