Distinctive appearance, similar to the IR ThunderGun racing tool. Adjustable power regulator. Our fastest 1/2" impact wrench. 625 ft./lbs. max reverse torque. 500 ft./lbs. forward torque This is our fastest 1/2" impact wrench...and as close as you can get to the real racing tools preferred by NASCAR tire changers. It features 625 ft./lbs. of torque in reverse with 10,000 RPM to deliver pit crew power, speed and durability for shop tasks.