Makita Pneumatic Coil Framing Nailer AN902 3 1 2 Inch Air Powered Gun (120 PSI 6.1 SCFM 15 Degree Wire Collated Sheathing Fencing Woodworking) PEX Expander The 7 8 inch diamond arbor knockout The 7 8 inch diamond arbor knockout ensures compatibility with a wide range of angle grinders and circular saws General Maintenance: Handling high frequency adjustments on hex bolts and nuts where quick size switching and high torque leverage are required The Makita AN902 3 1 2 Inch Coil Framing Nailer is a pneumatic high production construction tool engineered to drive 15 degree wire collated framing nails from 1 3 4 to 3 1 2 inches in length High Capacity Air Fastening for Wood Framing and Structural Sheathing