Proto Wrench - 26.3in Length - Alloy Steel, Chrome Steel - 4.68 lb - Slip Resistant

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.