Proper designing, selection of raw material, salt bath heat-treatment, and CNC finished profiles help to maximize the tonnage per regrind and yields quality end products. Roll designing is a very critical stage as it affects the cost of the rolls, life of the rolls, productivity of the mill, and the quality of the tube section. DeeTee uses COPRA ( German) software for the roll designing. The customer has to provide only the basic details of the mill and the input and output details.