Professional-Grade 1/2" Interchangeable Spanner Torque Wrench Set - 15-80 Ft-Lb World's most-versatile torque wrench set 1/2" drive, 14-inch torque handle, 15-80 ft-lb Super-large spanner heads: 17, 22, 24, 26, 27 & 29mm Twist torque dial with lock, prevents accidental down-dialing damage; soft-grip handle Factory-calibrated and certified to +/-4% accuracy. Includes custom-fit ABS storage case