The CDI 6004MFRMH is a 3/4" drive micrometer-adjustable torque wrench with a range of 100–600 ft-lb (169–814 Nm). It features a dual scale calibrated for both directions, a positive lock with a spring-loaded pull-down lock ring, and easy-to-read laser-marked scales. The quick-release button ensures secure socket retention and easy removal. Accuracy is ±3% clockwise and ±4% counter-clockwise of indicated value. Each wrench is individually serialized with a certificate of calibration traceable to N.I.S.T. ​