The Stubby lets you squeeze into very snug spaces without feeling squeezed while you run small fasteners. Specifications: Performance Rating: Standard Square Drive: 3/8 inch Working Torque Range: 5-20 foot pounds Maximum Torque: 20 foot pounds Standard Bolt Size: 3/8 inch Weight: 1. 1 pounds Length: 6. 5 inches Average Air Consumptions: 2. 5 CFM At load: 15 CFM Sound dBA: 87. 7 Air Inlet: 1/4 inch Minimum Hose Size: 1/4 inch Ingersoll-Rand IR1033A 3/8 Stubby Standard Duty Air Ratchet Wrench