Milwaukee 7120-21 3/4- to 1-3/4-Inch Coil Roofing Nailer Operating pressure min-70 PSI, Max-120 PSI; air consumption .08 ft3/cycles at 100 psi Fastener length minimum 0.75 inches and maximum 1.5 inches; fastener diameter 0.120 inches 120 nail magazine capacity 15 degree collation angle; 3/8 in. NPT air inlet 5-year limited warranty