Air Hand Tapping Tool Maximum Tapping Capacity 1/2 in Aluminum 7/16 in Steel Included Tap Holder Sizes Not Applicable Tool Holder Size 1 Free Speed 150 RPM Horsepower 1/2 hp Air Consumption 27 cfm Required Pressure 90 psi Air Inlet Size 3/8 in Compatible Hose Diameter 3/8 in Includes Quick Change Tooling Adapter Maximum Operating Pressure 100 psi Reversible Yes Weight 4 lb