Micrometer Ratcheting Head Torque Wrench, 1/2 in Drive Size, 50 ft lb to 250 ft lb torque increments

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