Adjustable top screw and heavy-duty base. 6-ton offers 12,000-lb. capacity/8-1/2" to 16-1/4" lifting range; 12-ton offers 24,000-lb. capacity/9-1/16" to 18-5/16" lifting range; and 20-ton offers 40,000-lb. capacity/9-1/2" to 17-13/16" lifting range.




Size Tons=12