The Genius Tools 1/2” by 3/4" Dr. Torque Multiplier, No. 401500, can replace impact wrenches, pipe extensions and other insufficient and unsafe bolting methods. They are designed to provide reliable tightening quality without cables, energy supplies or hydraulic pressure lines. All parts are made of tempered steel to prevent wear. The tool features a 10:1 gear ratio, with a maximum output of 1,100 ft/lbs, and it meets or exceeds ANSI and DIN standards, with accuracy of ±4 percent throughout the operating range.