The Blackhawk Automotive BH6036 3.5 ton fast lift service jack features a 3.5 ton capacity. The innovative design of Fast Lift offers a fast lift for professional performance. It features heavy gauge construction with rugged universal joint release valve. A built-in by-pass device protects hydraulic system from over pumping damage. The metered release system allows for precise load control. After the first pump reaches the lifting point, the jack continues with extraordinary lifting speed to raise the load to the desired height. The rolled side frame adds strength and rigidity to reduce twisting.