Precision Instruments 3/8"Dr., 0-150Lb.In., Dial Type Torq Features and Benefits: Patented Torsion bar design ensures the most accurate wrench possible Dial Type wrenches are not hand hold sensitive meaning that hand position does not affect accuracy Accurate to within 2% of the reading in both clockwise and counterclockwise direction Memory needle records peak torque for each application Patented large shock resistant dials Warranty: 1 yr warranty on material and workmanship