The Senco® FramePro 600 nailer drives 2" - 3-1/2" smooth shank nails (Sencote® or plain) and 2" - 3" ring shank nails, 3" screw shank and clipped "D" head nails. Shank diameters include .113, .120, .131, and .148. Regular operating pressure is 70—120 psig.