3/8" Air Mini Ratchet Wrench, 25 ft-lb Torque, 250 RPM. The 105 Series of air ratchet wrenches are small, durable, and easy to handle for vehicle repair technicians. The low profile forward/reverse control has a wide diameter for easy gripping and increased control in confined spaces. Power & Speed: With 25 ft-lb max torque and 250 rpm free speed, you can count on the 105 Series to deliver impressive power. Greater Access & Reach: The 105 Series mini ratchet wrenches are small and nimble enough to tackle jobs in both tight and hard to reach places. Durable: With an aluminum housing and steel head construction, the 105 Series has improved durability and consistent performance. Increased Safety: The ball dent anvil found on each member of the 105 Series provides a more secure link to the socket, increasing operator safety.