CN452S Pnematic coil Nail gun RWS147. This gun is the perfect tool for the hard floor layer to fit the plywood sub floor with. Its rapid operation makes light work of laying plywood, so you can get on with laying the tiles or other flooring. Working off a compressor the gun requires 60-100 psi. The coils of nails fit into the gun's magazine and are fed forward on wire. Comes complete with plastic carry case and instructions.