OTC'sHDJ20P Air/Hydraulic Service Jack features a rugged steel frame capable of lifting up to 20 tons, making it ideal for servicing large vehicles. The jack's enhanced versatility is made possible by air-assist lifting with its low-profile stance and extended height. It can be pumped using air-assist, foot, or jack handle action. Its large metal wheels and swivel casters are designed to roll effortlessly on internal bearings, providing optimal mobility and service life.