Air Tapping Arm Maximum Reach 37 in Minimum Reach 4 in Maximum Tapping Capacity - Steel 1/2 in Maximum Tapping Capacity - Aluminum 9/16 in Included Tap Holder Sizes Not Applicable Tool Holder Size Size 1 Free Speed 400 RPM Torque 27 ft-lb Air Consumption 24 cfm Number of Speeds 1 Features Standard Equipment