The Mac Tools AR154 Pneumatic Air Ratchet is a heavy-duty 3/8 drive tool designed for automotive use. With a maximum torque of 50ft/lbs and a maximum speed of 150RPM, this durable ratchet delivers reliable performance. It includes an air hose fitting for easy connection and a 1/4 inch air inlet size for efficient operation. While it does not come with a warranty, this Mac Tools product is known for its quality and durability in the field of automotive tools and supplies. works great. free shipping