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PROTO® 3/4 in. Drive 90-600FT/LB. Ratchet Head Torque Wrench
Calibrated to +/- 3% 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
Testing and Approvals: