2 and 3 Piece Handles. Heat Treated Extension screws on all models through 20 ton. Meets ASME/ANSI-PALD Safety Standards. Equipped with Patented Built-In By-Pass device mechanism. Full power in vertical or horizontal position. Weight Capacity: 20-Ton. Minimum Height: 9-1/2". Maximum Height: 18-5/8". Screw Extension: 3-1/8". Operating Force: 117 pounds. Saddle Dimension: 2".