Experience the most intuitive finish grading tractor in the industry. The Cat® D3K2 Track-Type Tractor with Stable Blade delivers a smooth finish grade with less operator effort. Stable Blade senses ground conditions and works with the operator to produce the desired grade. The addition of the integrated AccuGrade™ grade control system helps you get to target grade even faster, with fewer passes and less manpower. From the first cut to finish grade, the D3K2 sets the standard.