Here’s how to change the needle, nozzle, and/or air cap on your spray gun for wood finishing applications. 1. Remove the fluid knob at the rear of your spray gun. 2. Remove the needle spring. 3.

This gun's ideal job is laying down solid swaths of paint on metalwork that's either part of a larger project or, as in our case, a single item being added to a vehicle. Paint flowed easily and that ...