The Kverneland CTC Series of chisel and subsoiler combination has three models. Frame widths range from 13.1' to 19.7'. The CTC's hollow shanks are heat treated and have a working depth of 2 to 12 inches. Leaf springs protect the shanks and vibration throughout the attachment benefits pulling forces and increases the shattering of soil. The chisel also doubles as a finishing tool with the Acti Pack rear roller. The outer wings have hydraulic accumulators and can be changed for different field conditions.