This is a heavy-duty Matco Tools air-powered 3/8" drive wrench, also known as a pneumatic ratchet. It has a maximum torque of 130 ft lbs and a maximum speed of 180 rpm. The manufacturer part number is MT2858.

Brand: Matco Tools
Accessories: Air Hose, Air Hose Fitting
Max Torque: 130 ft lbs
Manufacturer Part Number: MT2858
Maximum Speed(RPM): 180 rpm
Drive Size: 3/8in.