Harbor Freight Tools sells floor jacks categorized by the specific weight they can lift safely. Standard floor jacks have a lifting strength ranging from 1.5 to 4 tons, and hydraulic and air floor jacks can lift up to 22 tons.
Each jack sold at Harbor Freight Tools is equipped with rapid pump technology that allows jacking up a car with fewer pumps. The jacks are manufactured by Pittsburgh Automotive and are made either from either steel or aluminum. Steel is appealing for those that want to save money and want a heavier jack. Aluminum weighs less but has a higher cost.