The Matco Tools 3/8" Stubby Push Button Impact Wrench, No. MT2748M, features a powerful hammer mechanism, providing 600 ft-lbs torque breakaway output in a small package. Its composite housing is resistant to most automotive fluids and offers one handed operation with a rear forward/reverse push button design. It has a rear regulator dial to adjust torque output in the forward direction and a variable speed throttle for precise control in tight spaces.