Ingersoll Rand's model 259 3/4" Impactool features a "rocking dog" impact mechanism that performs well with a variety of air pressures and supply conditions, eliminating the required cost of upgrading to a 1/2" air line. The tool's size and weight allows for one-handed operation as needed. The 259 delivers maximum torque in both forward and reverse, features a silenced exhaust and has a variable-speed trigger.