3/8IN Drive 20-100 ft.-lbs. Micrometer Torque Wrench Knurled handle for a non-slip grip. Easy-to-read stamped scale on beam and thimble collar. Positive lock with spring-loaded pull down lock ring. Fast, accurate and easy to set. Teardrop ratchet head. Meets ISO 6789 specifications. Calibrated on test equipment complying with ASME B107.300-2010 accuracy requirements. Comes in blow-molded storage case with instructions and calibration certificate. Specifications:. 20-100 ft.-lbs.. 30.5 - 138.9 NM. Accuracy: ± 4 percent CW from 20 percent to 100 percent of full scale. Length: 16-1/2 IN 12502A Prop65 information pending -