Foot Pound Ratchet Head Torque Wrenches, 3/8 in, 20 ft lb-100 ft lb

Calibrated to +/- 4% clockwise direction and +/- 6% counter clockwise at 20% to 100% of full scale. Manufactured to meet standard industrial torque applications, general industry, heavy equipment, and maintenance. Calibration is accomplished by manual loading the torque wrenches.