Staple Gun Air Powered Air Consumption 0.77 cfm Air Inlet 1/4 in NPT Air Pressure 95 psi Max Air Pressure 95 psi Min Air Pressure 60 psi Min Hose Size 3/8 in Exhaust Location Top Tool Brand SENCO Firing Mode Bump Depth Control No Fastener Type Roofing For Staple Leg Length 5/8 in For Staple Type Crowned For Staple Width 1/2 in For Staple Gauge 21 ga Staple Capacity 110 Cap Capacity 110 Duty Rating Industrial Duty Housing Material Aluminum Overall Height 8 1/2 in