The Ingersoll Rand 231C Air Impact Wrench was introduced over 25 years ago and has been continuously refined since. It provides sheer power and performance features that help you tackle the toughest jobs with ease and at a great value. It delivers maximum torque output of 600 foot-pounds and the adjustable power regulator offers variable torque output depending on your task. Its lightweight, ergonomic, and compact design is great for extended use and less hand and wrist fatigue. The twin-hammer mechanism helps ensure efficient performance with impressive rotational speeds of up to 8,000 rpm. The 231C Air Impact Wrench features a streamlined two-piece construction that is easy to maintain, and it comes fully lubricated and ready to use right out of the box.