Ratchet Head Torque WrenchCalibrated to +/- 4% in both the clockwise and counter clockwise. Calibration is accomplished by manual loading the torque wrenches. Ratcheting mechanisms are performance tested to over 80,000 cycles at 1/3 ANSI proof loads for durability. Manufactured to meet standard industrial torque applications, general industry, heavy equipment, and maintenance. Drive Size: 3/4 in; Drive Type: Male Square; Finish: Chrome; Material: Alloy Steel; Overall Length: 11 7/8 in; Torque: 40.00 in lb [Min], 200.00 in lb [Max]; Torque Increment: 1.000 in lb; Weight: 2.63 lb.